--- title: Scientists compare new medicines with placebos in trials to see if t… — How medicines work · tree and pragmatics description: Scientists compare new medicines with placebos in trials to see if they really work. Who acts: Scientists, medicine. A sentence of the lesson «How medicines work» of the medicine course of Mova's primary school with its dependency tree and the pragmatics of every clause. --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/medicine/17-how-medicines-work/14/) [home](https://md.mova.elamur.ai/free/en/) / [corpora](https://md.mova.elamur.ai/free/en/corpora/) / [school](https://md.mova.elamur.ai/free/en/corpora/school/) / [Medicine](https://md.mova.elamur.ai/free/en/corpora/school/medicine/) / [How medicines work](https://md.mova.elamur.ai/free/en/corpora/school/medicine/17-how-medicines-work/) / 14 # How medicines work, sentence 14 Scientists compare new medicines with placebos in trials to see if they really work. **Who acts:** Scientists, medicine · **What happens:** compare, see, work · **To what, where:** new medicines, trials This is a sentence of the lesson «How medicines work» of the medicine course of Mova's primary school. The page gives its syntax tree — a dependency tree in the style of Universal Dependencies — and its pragmatics clause by clause: who acts (Scientists, medicine), what happens, when and where, as Mova's frames read it from the tree. ## The tree {#tree} ```conllu # sent_id = school:medicine:017-how-medicines-work.lesson:14 # text = Scientists compare new medicines with placebos in trials to see if they really work. # source = school lesson (ours) # course = medicine # lesson = 017-how-medicines-work.lesson # annotation = Mova annot: Rust (en) → Haiku 5.5 (medium, Batches API) patches; gates UD 2.18; agreed by treeagree rules (Stanza, Trankit, spaCy trf): R5-strong ×2, R7-rel-agree ×1 1 Scientists scientist NOUN NNS Number=Plur 2 nsubj _ _ 2 compare compare VERB VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 0 root _ _ 3 new new ADJ JJ Degree=Pos 4 amod _ _ 4 medicines medicine NOUN NNS Number=Plur 2 obj _ _ 5 with with ADP IN _ 6 case _ _ 6 placebos placebo NOUN NNS Number=Plur 2 obl _ Agree=R5-strong|Haiku=4:nmod 7 in in ADP IN _ 8 case _ _ 8 trials trial NOUN NNS Number=Plur 2 obl _ Agree=R5-strong|Haiku=6:nmod 9 to to PART TO _ 10 mark _ _ 10 see see VERB VB VerbForm=Inf 2 advcl _ _ 11 if if SCONJ IN _ 14 mark _ _ 12 they they PRON PRP Case=Nom|Number=Plur|Person=3|PronType=Prs 14 nsubj _ _ 13 really really ADV RB _ 14 advmod _ _ 14 work work VERB VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 10 ccomp _ Agree=R7-rel-agree|Haiku=10:advcl 15 . . PUNCT . _ 2 punct _ _ ``` ## Pragmatics {#pragmatics} - form: statement - act: assert - voice: narrator - polarity: none - teacher: kept the draft | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **compare** | present | Scientists | new medicines | | trials | | with placebos | vn amalgamate-22.2-2 «NP V NP PP.co-patient»: agent=Agent medicine=Patient with placebo=Co-Patient | | 2 | **see** | to-infinitive | Scientists *not said here* | | | | | | vn comprehend-87.2-1-1 «NP V how S\_INF»: agent=Experiencer clause=Stimulus | | 3 | **work** *a condition, not said to happen* | present | medicine | | | | | | vn employment-95.3 «NP V»: agent=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. **Licence: [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/)**, as the whole of Mova corpus 0.4, of which this treebank (the agreed school, `mova-school-agreed-en.conllu`) is part. The lessons were written for Mova's primary school. Sentence `school:medicine:017-how-medicines-work.lesson:14`. **The tree:** Mova annot: Rust (en) → Haiku 5.5 (medium, Batches API) patches; gates UD 2.18; agreed by treeagree rules (Stanza, Trankit, spaCy trf): R5-strong ×2, R7-rel-agree ×1. **The frames** are read from the tree by Mova's frames reader (`prag`) when this page is built, the lesson read in order, so a pronoun may be resolved from an earlier sentence. See the [release 0.4](https://md.mova.elamur.ai/free/en/releases/0.4/). - ← previous: [How medicines work, 13](https://md.mova.elamur.ai/free/en/corpora/school/medicine/17-how-medicines-work/13/) - next →: [How medicines work, 15](https://md.mova.elamur.ai/free/en/corpora/school/medicine/17-how-medicines-work/15/) - ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/medicine/17-how-medicines-work/)