--- title: Ascertain the agent of erosion acknowledged to be the most powerful… — Weathering and erosion · tree and pragmatics description: Ascertain the agent of erosion acknowledged to be the most powerful upon the Earth. Exam question 2 of lesson 52 «Weathering and erosion» of the geography 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/geography/52-weathering-and-erosion/e2/) [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/) / [Geography](https://md.mova.elamur.ai/free/en/corpora/questions/geography/) / [Weathering and erosion](https://md.mova.elamur.ai/free/en/corpora/questions/geography/52-weathering-and-erosion/) / e2 # Exam question 2 · Weathering and erosion Ascertain the agent of erosion acknowledged to be the most powerful upon the Earth. **Mova's choice:** option 1 · **The right answer:** option 1 · right ✓ · **Who acts:** you · **What happens:** ascertain, acknowledge, be · **To what, where:** agent This is exam question 2 of lesson 52 «Weathering and erosion» of the geography 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/geography/52-weathering-and-erosion/#e2). ## The question {#question} ```conllu # sent_id = question:geography:52-weathering-and-erosion:e2:1 # text = Ascertain the agent of erosion acknowledged to be the most powerful upon the Earth. 1 Ascertain ascertain VERB VB Mood=Imp|VerbForm=Fin 0 root _ _ 2 the the DET DT Definite=Def|PronType=Art 3 det _ _ 3 agent agent NOUN NN Number=Sing 1 obj _ _ 4 of of ADP IN _ 5 case _ _ 5 erosion erosion NOUN NN Number=Sing 3 nmod _ _ 6 acknowledged acknowledge VERB VBN Tense=Past|VerbForm=Part|Voice=Pass 3 acl _ _ 7 to to PART TO _ 11 mark _ _ 8 be be AUX VB VerbForm=Inf 11 cop _ _ 9 the the DET DT Definite=Def|PronType=Art 11 det _ _ 10 most most ADV RBS Degree=Sup 11 advmod _ _ 11 powerful powerful ADJ JJ Degree=Pos 6 advcl _ _ 12 upon upon ADP IN _ 14 case _ _ 13 the the DET DT Definite=Def|PronType=Art 14 det _ _ 14 Earth Earth PROPN NNP Number=Sing 11 obl _ SpaceAfter=No 15 . . PUNCT . _ 1 punct _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **ascertain** | imperative | you *not said here* | the agent of erosion | | | | | vn discover-84 «NP V NP»: agent=Agent agent=Topic | | 2 | **acknowledge** | participle | | the agent of erosion *not said here* | | | | | vn confess-37.10 «NP V how S»: agent=Agent | | 3 | **is** | to-infinitive | | | | | | upon the Earth; powerful *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 · ✓ the right answer {#o1} Running water ```conllu # sent_id = question:geography:52-weathering-and-erosion:e2:o1:1 # text = Running water 1 Running run VERB VBG VerbForm=Ger 2 amod _ _ 2 water water NOUN NN Number=Sing 0 root _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **run** | gerund | | | | | | | vn run-51.3.2-2-1 «NP V»: agent=Theme | ### Option 2 {#o2} Glacial ice in deserts ```conllu # sent_id = question:geography:52-weathering-and-erosion:e2:o2:1 # text = Glacial ice in deserts 1 Glacial glacial ADJ JJ Degree=Pos 2 amod _ _ 2 ice ice NOUN NN Number=Sing 0 root _ _ 3 in in ADP IN _ 4 case _ _ 4 deserts desert NOUN NNS Number=Plur 2 nmod _ _ ``` The frames reader finds no event or fact in this sentence. ### Option 3 {#o3} Burrowing animals ```conllu # sent_id = question:geography:52-weathering-and-erosion:e2:o3:1 # text = Burrowing animals 1 Burrowing burrow VERB VBG VerbForm=Ger 2 amod _ _ 2 animals animal NOUN NNS Number=Plur 0 root _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **burrow** | gerund | | | | | | | vn rummage-35.5 «NP V PP.location»: agent=Agent | ### Option 4 {#o4} Wind in arid regions ```conllu # sent_id = question:geography:52-weathering-and-erosion:e2:o4:1 # text = Wind in arid regions 1 Wind wind NOUN NN Number=Sing 0 root _ _ 2 in in ADP IN _ 4 case _ _ 3 arid arid ADJ JJ Degree=Pos 4 amod _ _ 4 regions region NOUN NNS Number=Plur 1 nmod _ _ ``` The frames reader finds no event or fact in this sentence. **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: [Weathering and erosion, exam 1](https://md.mova.elamur.ai/free/en/corpora/questions/geography/52-weathering-and-erosion/e1/) - next →: [Weathering and erosion, exam 3](https://md.mova.elamur.ai/free/en/corpora/questions/geography/52-weathering-and-erosion/e3/) - ↑ back to [Weathering and erosion](https://md.mova.elamur.ai/free/en/corpora/questions/geography/52-weathering-and-erosion/)