--- title: Why do the rainbow colours on a puddle swirl and move? — Oil and water, and things that won't mix · tree and pragmatics description: Why do the rainbow colours on a puddle swirl and move? Test 9 · ★ of lesson 7 «Oil and water, and things that won't mix» of the chemistry course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mova's choice was wrong. --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/questions/chemistry/7-oil-and-water/t9/) [home](https://md.mova.elamur.ai/free/en/) / [corpora](https://md.mova.elamur.ai/free/en/corpora/) / [questions](https://md.mova.elamur.ai/free/en/corpora/questions/) / [Chemistry](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/) / [Oil and water, and things that won't mix](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/7-oil-and-water/) / t9 # Test 9 · ★ · Oil and water, and things that won't mix Why do the rainbow colours on a puddle swirl and move? **Mova's choice:** option 1 · **The right answer:** option 3 · wrong ✗ · **Who acts:** you · **What happens:** do, move · **To what, where:** rainbow colours, puddle swirl This is test 9 · ★ of lesson 7 «Oil and water, and things that won't mix» of the chemistry course of Mova's primary school. The page gives the question's syntax tree — a dependency tree in the style of Universal Dependencies — and its pragmatics clause by clause, then the 4 options as the student saw them, each with its tree and pragmatics. Every text is parsed by Mova itself. How the student answered it, with the score of every option and why: [the test at school](https://md.mova.elamur.ai/free/en/school-run/chemistry/7-oil-and-water/#t9). ## The question {#question} ```conllu # sent_id = question:chemistry:7-oil-and-water:t9:1 # text = Why do the rainbow colours on a puddle swirl and move? 1 Why why ADV WRB PronType=Int 2 advmod _ _ 2 do do VERB VBP Mood=Ind|Number=Sing|Person=2|Tense=Pres|VerbForm=Fin 11 advcl _ _ 3 the the DET DT Definite=Def|PronType=Art 5 det _ _ 4 rainbow rainbow NOUN NN Number=Sing 5 compound _ _ 5 colours colour NOUN NNS Number=Plur 2 obj _ _ 6 on on ADP IN _ 9 case _ _ 7 a a DET DT Definite=Ind|PronType=Art 9 det _ _ 8 puddle puddle NOUN NN Number=Sing 9 compound _ _ 9 swirl swirl NOUN NN Number=Sing 5 nmod _ _ 10 and and CCONJ CC _ 11 cc _ _ 11 move move VERB VB Mood=Imp|VerbForm=Fin 0 root _ SpaceAfter=No 12 ? ? PUNCT . _ 11 punct _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **do** | present | you *not said here* | the rainbow colours | | a puddle swirl | | | vn act-114-1 «NP V NP»: agent=Agent colour=Eventuality | | 2 | **move** | imperative | you *not said here* | | | | | | vn roll-51.3.1 «NP.theme V»: agent=Theme | One row per clause the reader finds. «not said here»: a role filled from the clause above. «roles by»: a VerbNet class and frame when one fits the verb, else the reader's rules on the tree. ## The options {#options} ### Option 1 · ← Mova's choice {#o1} The puddle is full of tiny fish swimming round and round under the top ```conllu # sent_id = question:chemistry:7-oil-and-water:t9:o1:1 # text = The puddle is full of tiny fish swimming round and round under the top 1 The the DET DT Definite=Def|PronType=Art 2 det _ _ 2 puddle puddle NOUN NN Number=Sing 4 nsubj _ _ 3 is be AUX VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 4 cop _ _ 4 full full ADJ JJ Degree=Pos 0 root _ _ 5 of of ADP IN _ 7 case _ _ 6 tiny tiny ADJ JJ Degree=Pos 7 amod _ _ 7 fish fish NOUN NN Number=Sing 4 obl _ _ 8 swimming swim VERB VBG VerbForm=Ger 7 acl _ _ 9 round round ADV RB _ 8 advmod _ _ 10 and and CCONJ CC _ 11 cc _ _ 11 round round ADV RB _ 9 conj _ _ 12 under under ADP IN _ 14 case _ _ 13 the the DET DT Definite=Def|PronType=Art 14 det _ _ 14 top top NOUN NN Number=Sing 8 obl _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **is** | present | the puddle | | | | | of tiny fish; full *property* | tree rules | | 2 | **swim** | gerund | tiny fish *not said here* | | | the top | | round *property* | vn run-51.3.2-1 «NP V PP.location»: agent=Theme under top=Trajectory | ### Option 2 {#o2} The ground underneath is changing colour ```conllu # sent_id = question:chemistry:7-oil-and-water:t9:o2:1 # text = The ground underneath is changing colour 1 The the DET DT Definite=Def|PronType=Art 2 det _ _ 2 ground ground NOUN NN Number=Sing 5 nsubj _ _ 3 underneath underneath ADV RB _ 2 advmod _ _ 4 is be AUX VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 5 aux _ _ 5 changing change VERB VBG Tense=Pres|VerbForm=Part 0 root _ _ 6 colour colour NOUN NN Number=Sing 5 obj _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **change** | present · progressive | the ground | colour | | | | | vn dress-41.1.1-1-1 «NP V NP»: agent=Agent colour=Patient | ### Option 3 · ✓ the right answer {#o3} The oil film keeps changing thickness as it spreads and drifts ```conllu # sent_id = question:chemistry:7-oil-and-water:t9:o3:1 # text = The oil film keeps changing thickness as it spreads and drifts 1 The the DET DT Definite=Def|PronType=Art 3 det _ _ 2 oil oil NOUN NN Number=Sing 3 compound _ _ 3 film film NOUN NN Number=Sing 4 nsubj _ _ 4 keeps keep VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 0 root _ _ 5 changing change VERB VBG VerbForm=Ger 4 xcomp _ _ 6 thickness thickness NOUN NN Number=Sing 5 obj _ _ 7 as as SCONJ IN _ 9 mark _ _ 8 it it PRON PRP Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs 9 nsubj _ _ 9 spreads spread VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 4 advcl _ _ 10 and and CCONJ CC _ 11 cc _ _ 11 drifts drift VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 9 conj _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **keep** | present | the oil film | | | | | | tree rules | | 2 | **change** | gerund | the oil film *not said here* | thickness | | | | | vn dress-41.1.1-1-1 «NP V NP»: agent=Agent thickness=Patient | | 3 | **spread** | present | film | | | | | | vn appear-48.1.1 «NP V»: agent=Theme | | 4 | **drift** | present | film *not said here* | | | | | | vn run-51.3.2-2 «NP V»: agent=Theme | ### Option 4 {#o4} Rain falls in coloured drops ```conllu # sent_id = question:chemistry:7-oil-and-water:t9:o4:1 # text = Rain falls in coloured drops 1 Rain rain NOUN NN Number=Sing 2 nsubj _ _ 2 falls fall VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 0 root _ _ 3 in in ADP IN _ 5 case _ _ 4 coloured coloured ADJ JJ Degree=Pos 5 amod _ _ 5 drops drop NOUN NNS Number=Plur 2 obl _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **fall** | present | Rain | | | coloured drops | | | vn occur-48.3 «NP V PP»: agent=Theme in drop=Location | **Text:** the tests of Mova's primary school, written for Mova (`world/data/school/`), as the course runner gave them to the student. **Trees:** Mova's own parse — the `en` model on the CPU, when the site is built — not checked by a teacher; they may be wrong. **Frames:** Mova's frames reader (`prag`), each text read on its own. Elamur Cosmic License. - ← previous: [Oil and water, and things that won't mix, test 8](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/7-oil-and-water/t8/) - next →: [Oil and water, and things that won't mix, test 10](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/7-oil-and-water/t10/) - ↑ back to [Oil and water, and things that won't mix](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/7-oil-and-water/)