--- title: When two forces are equal and opposite, as in a tug of war where nob… — Pushes and pulls: what makes things move and stop · tree and pragmatics description: When two forces are equal and opposite, as in a tug of war where nobody wins, they cancel and nothing changes. Who acts: two forces, nobody, grass, nothing. A sentence of the lesson «Pushes and pulls: what makes things move and stop» of the physics course of Mova's primary school with its dependency --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/physics/4-pushes-and-pulls-move-and-stop/4/) [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/) / [Physics](https://md.mova.elamur.ai/free/en/corpora/school/physics/) / [Pushes and pulls: what makes things mo…](https://md.mova.elamur.ai/free/en/corpora/school/physics/4-pushes-and-pulls-move-and-stop/) / 4 # Pushes and pulls: what makes things move and stop, sentence 4 When two forces are equal and opposite, as in a tug of war where nobody wins, they cancel and nothing changes. **Who acts:** two forces, nobody, grass, nothing · **What happens:** be, win, cancel, change, tug · **To what, where:** war This is a sentence of the lesson «Pushes and pulls: what makes things move and stop» of the physics 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 (two forces, nobody, grass, nothing), what happens, when and where, as Mova's frames read it from the tree. ## The tree {#tree} ```conllu # sent_id = school:physics:004-pushes-and-pulls-move-and-stop.lesson:4 # text = When two forces are equal and opposite, as in a tug of war where nobody wins, they cancel and nothing changes. # source = school lesson (ours) # course = physics # lesson = 004-pushes-and-pulls-move-and-stop.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 ×1, R6-punct-agree ×2 1 When when ADV WRB PronType=Int 5 advmod _ _ 2 two two NUM CD NumForm=Word|NumType=Card 3 nummod _ _ 3 forces force NOUN NNS Number=Plur 5 nsubj _ _ 4 are be AUX VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 5 cop _ _ 5 equal equal ADJ JJ Degree=Pos 0 root _ _ 6 and and CCONJ CC _ 7 cc _ _ 7 opposite opposite ADJ JJ Degree=Pos 5 conj _ _ 8 , , PUNCT , _ 5 punct _ Agree=R6-punct-agree|Haiku=12:punct 9 as as ADP IN _ 12 case _ _ 10 in in ADP IN _ 12 case _ _ 11 a a DET DT Definite=Ind|PronType=Art 12 det _ _ 12 tug tug NOUN NN Number=Sing 5 conj _ _ 13 of of ADP IN _ 14 case _ _ 14 war war NOUN NN Number=Sing 12 nmod _ _ 15 where where ADV WRB PronType=Rel 17 advmod _ _ 16 nobody nobody PRON NN Number=Sing|PronType=Neg 17 nsubj _ _ 17 wins win VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 12 acl:relcl _ Agree=R5-strong|Haiku=14:acl:relcl 18 , , PUNCT , _ 20 punct _ _ 19 they they PRON PRP Case=Nom|Number=Plur|Person=3|PronType=Prs 20 nsubj _ _ 20 cancel cancel VERB VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 5 advcl _ _ 21 and and CCONJ CC _ 23 cc _ _ 22 nothing nothing PRON NN Number=Sing|PronType=Neg 23 nsubj _ _ 23 changes change VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 20 conj _ _ 24 . . PUNCT . _ 20 punct _ Agree=R6-punct-agree|Haiku=5: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 | **is** | present | two forces | | | | | equal *property* | tree rules | | 2 | **be** | | two forces *not said here* | | | | | | tree rules | | 3 | **win** | present | nobody | | | | | | vn succeed-74-2 «NP V»: agent=Agent | | 4 | **cancel** | present | grass | | | | | | tree rules | | 5 | **change** | present | nothing | | | | | | vn dress-41.1.1-1-1 «NP V»: agent=Agent | | 6 | **tug** | | | war | | | | | nom tug «act transitive»: of=patient | 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:physics:004-pushes-and-pulls-move-and-stop.lesson:4`. **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 ×1, R6-punct-agree ×2. **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: [Pushes and pulls: what makes things mo…, 3](https://md.mova.elamur.ai/free/en/corpora/school/physics/4-pushes-and-pulls-move-and-stop/3/) - next →: [Pushes and pulls: what makes things mo…, 5](https://md.mova.elamur.ai/free/en/corpora/school/physics/4-pushes-and-pulls-move-and-stop/5/) - ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/physics/4-pushes-and-pulls-move-and-stop/)