--- title: Determine the appropriate method for the separation of iron filings… — Mixtures and how to separate them · tree and pragmatics description: Determine the appropriate method for the separation of iron filings from sand. Exam question 4 of lesson 19 «Mixtures and how to separate them» of the world course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mova's choice was right. --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/questions/world/19-mixtures-and-separating/e4/) [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/) / [World](https://md.mova.elamur.ai/free/en/corpora/questions/world/) / [Mixtures and how to separate them](https://md.mova.elamur.ai/free/en/corpora/questions/world/19-mixtures-and-separating/) / e4 # Exam question 4 · Mixtures and how to separate them Determine the appropriate method for the separation of iron filings from sand. **Mova's choice:** option 1 · **The right answer:** option 1 · right ✓ · **Who acts:** you, iron filings · **What happens:** determine, separate · **To what, where:** appropriate method This is exam question 4 of lesson 19 «Mixtures and how to separate them» of the world 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/world/19-mixtures-and-separating/#e4). ## The question {#question} ```conllu # sent_id = question:world:19-mixtures-and-separating:e4:1 # text = Determine the appropriate method for the separation of iron filings from sand. 1 Determine determine VERB VB Mood=Imp|VerbForm=Fin 0 root _ _ 2 the the DET DT Definite=Def|PronType=Art 4 det _ _ 3 appropriate appropriate ADJ JJ Degree=Pos 4 amod _ _ 4 method method NOUN NN Number=Sing 1 obj _ _ 5 for for ADP IN _ 7 case _ _ 6 the the DET DT Definite=Def|PronType=Art 7 det _ _ 7 separation separation NOUN NN Number=Sing 4 nmod _ _ 8 of of ADP IN _ 10 case _ _ 9 iron iron NOUN NN Number=Sing 10 compound _ _ 10 filings filing NOUN NNS Number=Plur 7 nmod _ _ 11 from from ADP IN _ 12 case _ _ 12 sand sand NOUN NN Number=Sing 10 nmod _ SpaceAfter=No 13 . . PUNCT . _ 1 punct _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **determine** | imperative | you *not said here* | the appropriate method | | | | for the separation of iron filings from sand | vn discover-84 «NP V NP»: agent=Agent method=Topic | | 2 | **separate** | | iron filings from sand | | | | | | nom separation «state intransitive»: of=agent | 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 · ✓ the right answer {#o1} The application of a magnet ```conllu # sent_id = question:world:19-mixtures-and-separating:e4:o1:1 # text = The application of a magnet 1 The the DET DT Definite=Def|PronType=Art 2 det _ _ 2 application application NOUN NN Number=Sing 0 root _ _ 3 of of ADP IN _ 5 case _ _ 4 a a DET DT Definite=Ind|PronType=Art 5 det _ _ 5 magnet magnet NOUN NN Number=Sing 2 nmod _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **apply** | | a magnet | | | | | | nom application «act intransitive»: of=agent | ### Option 2 {#o2} The addition of water and stirring ```conllu # sent_id = question:world:19-mixtures-and-separating:e4:o2:1 # text = The addition of water and stirring 1 The the DET DT Definite=Def|PronType=Art 2 det _ _ 2 addition addition NOUN NN Number=Sing 0 root _ _ 3 of of ADP IN _ 4 case _ _ 4 water water NOUN NN Number=Sing 2 nmod _ _ 5 and and CCONJ CC _ 6 cc _ _ 6 stirring stirring NOUN NN Number=Sing 2 conj _ _ ``` The frames reader finds no event or fact in this sentence. ### Option 3 {#o3} Filtration through paper ```conllu # sent_id = question:world:19-mixtures-and-separating:e4:o3:1 # text = Filtration through paper 1 Filtration filtration NOUN NN Number=Sing 0 root _ _ 2 through through ADP IN _ 3 case _ _ 3 paper paper NOUN NN Number=Sing 1 nmod _ _ ``` The frames reader finds no event or fact in this sentence. ### Option 4 {#o4} Evaporation by heating ```conllu # sent_id = question:world:19-mixtures-and-separating:e4:o4:1 # text = Evaporation by heating 1 Evaporation evaporation NOUN NN Number=Sing 0 root _ _ 2 by by ADP IN _ 3 case _ _ 3 heating heating NOUN NN Number=Sing 1 nmod _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **evaporate** | | heating | | | | | | nom evaporation «process transitive»: by=agent | **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: [Mixtures and how to separate them, exam 3](https://md.mova.elamur.ai/free/en/corpora/questions/world/19-mixtures-and-separating/e3/) - next →: [Clever reasoning about water and matter, test 1](https://md.mova.elamur.ai/free/en/corpora/questions/world/20-reasoning-water-and-matter/t1/) - ↑ back to [Mixtures and how to separate them](https://md.mova.elamur.ai/free/en/corpora/questions/world/19-mixtures-and-separating/)