--- title: A muscle can only pull, never push, so muscles work in pairs: when y… — The skeleton and muscles · tree and pragmatics description: A muscle can only pull, never push, so muscles work in pairs: when you bend your arm the biceps at the front pulls, and to straighten it the triceps at the back pulls. Who acts: muscle, muscles, you, biceps. A sentence of the lesson «The skeleton and muscles» of the world course of Mova's primary sc --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/world/31-skeleton-and-muscles/5/) [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/) / [World](https://md.mova.elamur.ai/free/en/corpora/school/world/) / [The skeleton and muscles](https://md.mova.elamur.ai/free/en/corpora/school/world/31-skeleton-and-muscles/) / 5 # The skeleton and muscles, sentence 5 A muscle can only pull, never push, so muscles work in pairs: when you bend your arm the biceps at the front pulls, and to straighten it the triceps at the back pulls. **Who acts:** muscle, muscles, you, biceps, triceps · **What happens:** pull, not push, work, bend, straighten · **To what, where:** arm This is a sentence of the lesson «The skeleton and muscles» of the world 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 (muscle, muscles, you, biceps), what happens, when and where, as Mova's frames read it from the tree. ## The tree {#tree} ```conllu # sent_id = school:world:031-skeleton-and-muscles.lesson:5 # text = A muscle can only pull, never push, so muscles work in pairs: when you bend your arm the biceps at the front pulls, and to straighten it the triceps at the back pulls. # source = school lesson (ours) # course = world # lesson = 031-skeleton-and-muscles.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): no change 1 A a DET DT Definite=Ind|PronType=Art 2 det _ _ 2 muscle muscle NOUN NN Number=Sing 5 nsubj _ _ 3 can can AUX MD VerbForm=Fin 5 aux _ _ 4 only only ADV RB _ 5 advmod _ _ 5 pull pull VERB VB VerbForm=Inf 0 root _ _ 6 , , PUNCT , _ 8 punct _ _ 7 never never ADV RB PronType=Neg 8 advmod _ _ 8 push push VERB VB VerbForm=Inf 5 conj _ _ 9 , , PUNCT , _ 12 punct _ _ 10 so so ADV RB _ 12 advmod _ _ 11 muscles muscle NOUN NNS Number=Plur 12 nsubj _ _ 12 work work VERB VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 8 parataxis _ _ 13 in in ADP IN _ 14 case _ _ 14 pairs pair NOUN NNS Number=Plur 12 obl _ _ 15 : : PUNCT : _ 18 punct _ _ 16 when when ADV WRB PronType=Int 18 advmod _ _ 17 you you PRON PRP Case=Nom|Person=2|PronType=Prs 18 nsubj _ _ 18 bend bend VERB VBP Mood=Ind|Number=Sing|Person=2|Tense=Pres|VerbForm=Fin 26 advcl _ _ 19 your your PRON PRP$ Case=Gen|Person=2|Poss=Yes|PronType=Prs 20 nmod:poss _ _ 20 arm arm NOUN NN Number=Sing 18 obj _ _ 21 the the DET DT Definite=Def|PronType=Art 22 det _ _ 22 biceps biceps NOUN NNS Number=Plur 26 nsubj _ _ 23 at at ADP IN _ 26 case _ _ 24 the the DET DT Definite=Def|PronType=Art 26 det _ _ 25 front front ADJ JJ Degree=Pos 26 amod _ _ 26 pulls pull VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 12 parataxis _ _ 27 , , PUNCT , _ 30 punct _ _ 28 and and CCONJ CC _ 26 cc _ _ 29 to to PART TO _ 30 mark _ _ 30 straighten straighten VERB VB VerbForm=Inf 37 advcl _ _ 31 it it PRON PRP Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs 30 obj _ _ 32 the the DET DT Definite=Def|PronType=Art 33 det _ _ 33 triceps triceps NOUN NNS Number=Plur 37 nsubj _ _ 34 at at ADP IN _ 37 case _ _ 35 the the DET DT Definite=Def|PronType=Art 37 det _ _ 36 back back NOUN NN Number=Sing 37 compound _ _ 37 pulls pull VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 26 conj _ _ 38 . . PUNCT . _ 5 punct _ _ ``` ## Pragmatics {#pragmatics} No stored speech act for this sentence. | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **pull** | can | a muscle | | | | | | vn slide-11.2 «NP V»: agent=Theme | | 2 | **not** **push** | infinitive | a muscle *not said here* | | | | | | vn push-12-1-1 «NP V PP»: agent=Agent | | 3 | **work** | present | muscles | | | | | in pairs | vn employment-95.3 «NP V PP.theme»: agent=Agent in pair=Theme | | 4 | **bend** | present | you | your arm | | | | | vn knead-26.5 «NP V NP.material»: agent=Agent arm=Material | | 5 | **pull** | present | the biceps | | | | | | vn slide-11.2 «NP V»: agent=Theme | | 6 | **straighten** | to-infinitive | the triceps *not said here* | arm | | | | | vn bend-45.2 «NP V NP.patient»: agent=Agent it=Patient | | 7 | **pull** | present | the triceps | | | | | | vn slide-11.2 «NP 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. **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:world:031-skeleton-and-muscles.lesson:5`. **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): no change. **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: [The skeleton and muscles, 4](https://md.mova.elamur.ai/free/en/corpora/school/world/31-skeleton-and-muscles/4/) - next →: [The skeleton and muscles, 6](https://md.mova.elamur.ai/free/en/corpora/school/world/31-skeleton-and-muscles/6/) - ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/world/31-skeleton-and-muscles/)