--- title: Which of the following statements most accurately characterises the… — Plastics: useful and stubborn · tree and pragmatics description: Which of the following statements most accurately characterises the molecular structure of plastics? Exam question 1 of lesson 29 «Plastics: useful and stubborn» of the chemistry course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mova's choic --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/questions/chemistry/29-plastics-useful-stubborn/e1/) [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/) / [Plastics: useful and stubborn](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/29-plastics-useful-stubborn/) / e1 # Exam question 1 · Plastics: useful and stubborn Which of the following statements most accurately characterises the molecular structure of plastics? **Mova's choice:** option 1 · **The right answer:** option 2 · wrong ✗ · **What happens:** follow, characteris · **To what, where:** molecular structure This is exam question 1 of lesson 29 «Plastics: useful and stubborn» of the chemistry course of Mova's primary school, asked in stiff, formal language. 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/29-plastics-useful-stubborn/#e1). ## The question {#question} ```conllu # sent_id = question:chemistry:29-plastics-useful-stubborn:e1:1 # text = Which of the following statements most accurately characterises the molecular structure of plastics? 1 Which which PRON WDT PronType=Rel 8 nsubj _ _ 2 of of ADP IN _ 5 case _ _ 3 the the DET DT Definite=Def|PronType=Art 5 det _ _ 4 following follow VERB VBG VerbForm=Ger 5 amod _ _ 5 statements statement NOUN NNS Number=Plur 8 obl _ _ 6 most most ADV RBS Degree=Sup 7 advmod _ _ 7 accurately accurately ADV RB _ 8 advmod _ _ 8 characterises characteris VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 0 root _ _ 9 the the DET DT Definite=Def|PronType=Art 11 det _ _ 10 molecular molecular ADJ JJ Degree=Pos 11 amod _ _ 11 structure structure NOUN NN Number=Sing 8 obj _ _ 12 of of ADP IN _ 13 case _ _ 13 plastics plastic NOUN NNS Number=Plur 11 nmod _ SpaceAfter=No 14 ? ? PUNCT . _ 8 punct _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **follow** | gerund | | | | | | | vn occur-48.3-1 «NP V»: agent=Theme | | 2 | **characteris** | present | | the molecular structure of plastics | | | | of the following statements; accurately *property* | tree rules | 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} They consist of crystals of sand fused by heat ```conllu # sent_id = question:chemistry:29-plastics-useful-stubborn:e1:o1:1 # text = They consist of crystals of sand fused by heat 1 They they PRON PRP Case=Nom|Number=Plur|Person=3|PronType=Prs 2 nsubj _ _ 2 consist consist VERB VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 0 root _ _ 3 of of ADP IN _ 4 case _ _ 4 crystals crystal NOUN NNS Number=Plur 2 obl _ _ 5 of of ADP IN _ 6 case _ _ 6 sand sand NOUN NN Number=Sing 4 nmod _ _ 7 fused fuse VERB VBN Tense=Past|VerbForm=Part|Voice=Pass 6 acl _ _ 8 by by ADP IN _ 9 case _ _ 9 heat heat NOUN NN Number=Sing 7 obl _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **consist** | present | They | | | | | of crystals of sand | tree rules | | 2 | **fuse** | participle | | sand *not said here* | | | | by heat | vn mix-22.1-1-1 «NP V»: agent=Patient | ### Option 2 · ✓ the right answer {#o2} They consist of very long chain molecules termed polymers ```conllu # sent_id = question:chemistry:29-plastics-useful-stubborn:e1:o2:1 # text = They consist of very long chain molecules termed polymers 1 They they PRON PRP Case=Nom|Number=Plur|Person=3|PronType=Prs 2 nsubj _ _ 2 consist consist VERB VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 0 root _ _ 3 of of ADP IN _ 7 case _ _ 4 very very ADV RB _ 5 advmod _ _ 5 long long ADJ JJ Degree=Pos 7 amod _ _ 6 chain chain NOUN NN Number=Sing 7 compound _ _ 7 molecules molecule NOUN NNS Number=Plur 2 obl _ _ 8 termed term VERB VBN Tense=Past|VerbForm=Part|Voice=Pass 9 amod _ _ 9 polymers polymer NOUN NNS Number=Plur 7 conj _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **consist** | present | They | | | | | of long chain molecules and termed polymers | tree rules | | 2 | **term** | participle | | | | | | | vn dub-29.3.2 «NP V NP»: agent=Agent | ### Option 3 {#o3} They consist of individual atoms of a single metal ```conllu # sent_id = question:chemistry:29-plastics-useful-stubborn:e1:o3:1 # text = They consist of individual atoms of a single metal 1 They they PRON PRP Case=Nom|Number=Plur|Person=3|PronType=Prs 2 nsubj _ _ 2 consist consist VERB VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 0 root _ _ 3 of of ADP IN _ 5 case _ _ 4 individual individual ADJ JJ Degree=Pos 5 amod _ _ 5 atoms atom NOUN NNS Number=Plur 2 obl _ _ 6 of of ADP IN _ 9 case _ _ 7 a a DET DT Definite=Ind|PronType=Art 9 det _ _ 8 single single ADJ JJ Degree=Pos 9 amod _ _ 9 metal metal NOUN NN Number=Sing 5 nmod _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **consist** | present | They | | | | | of individual atoms of a single metal | tree rules | ### Option 4 {#o4} They consist of small spherical molecules of water ```conllu # sent_id = question:chemistry:29-plastics-useful-stubborn:e1:o4:1 # text = They consist of small spherical molecules of water 1 They they PRON PRP Case=Nom|Number=Plur|Person=3|PronType=Prs 2 nsubj _ _ 2 consist consist VERB VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 0 root _ _ 3 of of ADP IN _ 6 case _ _ 4 small small ADJ JJ Degree=Pos 6 amod _ _ 5 spherical spherical ADJ JJ Degree=Pos 6 amod _ _ 6 molecules molecule NOUN NNS Number=Plur 2 obl _ _ 7 of of ADP IN _ 8 case _ _ 8 water water NOUN NN Number=Sing 6 nmod _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **consist** | present | They | | | | | of small spherical molecules of water | tree rules | **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: [Plastics: useful and stubborn, test 10](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/29-plastics-useful-stubborn/t10/) - next →: [Plastics: useful and stubborn, exam 2](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/29-plastics-useful-stubborn/e2/) - ↑ back to [Plastics: useful and stubborn](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/29-plastics-useful-stubborn/)