--- title: Friction is the grip between two touching surfaces; rough surfaces a… — Friction: the grip that stops and helps · tree and pragmatics description: Friction is the grip between two touching surfaces; rough surfaces and surfaces pressed hard together grip more. Who acts: Friction. A sentence of the lesson «Friction: the grip that stops and helps» of the physics course of Mova's primary school with its dependency tree and the pragmatics of every --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/physics/6-friction-the-grip/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/) / [Physics](https://md.mova.elamur.ai/free/en/corpora/school/physics/) / [Friction: the grip that stops and helps](https://md.mova.elamur.ai/free/en/corpora/school/physics/6-friction-the-grip/) / 5 # Friction: the grip that stops and helps, sentence 5 Friction is the grip between two touching surfaces; rough surfaces and surfaces pressed hard together grip more. **Who acts:** Friction · **What happens:** be, touch, press, grip · **To what, where:** grip, two touching surfaces This is a sentence of the lesson «Friction: the grip that stops and helps» 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 (Friction), what happens, when and where, as Mova's frames read it from the tree. ## The tree {#tree} ```conllu # sent_id = school:physics:006-friction-the-grip.lesson:5 # text = Friction is the grip between two touching surfaces; rough surfaces and surfaces pressed hard together grip more. # source = school lesson (ours) # course = physics # lesson = 006-friction-the-grip.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 1 Friction friction NOUN NN Number=Sing 4 nsubj _ _ 2 is be AUX VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 4 cop _ _ 3 the the DET DT Definite=Def|PronType=Art 4 det _ _ 4 grip grip NOUN NN Number=Sing 0 root _ _ 5 between between ADP IN _ 8 case _ _ 6 two two NUM CD NumForm=Word|NumType=Card 8 nummod _ _ 7 touching touch VERB VBG VerbForm=Ger 8 amod _ _ 8 surfaces surface NOUN NNS Number=Plur 4 nmod _ _ 9 ; ; PUNCT , _ 11 punct _ _ 10 rough rough ADJ JJ Degree=Pos 11 amod _ _ 11 surfaces surface NOUN NNS Number=Plur 8 conj _ _ 12 and and CCONJ CC _ 13 cc _ _ 13 surfaces surface NOUN NNS Number=Plur 11 conj _ Agree=R5-strong|Haiku=8:conj 14 pressed press VERB VBN Tense=Past|VerbForm=Part|Voice=Pass 8 acl _ _ 15 hard hard ADV RB Degree=Pos 14 advmod _ _ 16 together together ADV RB _ 14 advmod _ _ 17 grip grip VERB VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 4 parataxis _ _ 18 more more ADV RBR Degree=Cmp 17 advmod _ _ 19 . . PUNCT . _ 4 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 a** | present | Friction | the grip | | | | between two touching surfaces and rough surfaces and surfaces | tree rules | | 2 | **touch** | gerund | | | | | | | vn contiguous\_location-47.8-1 «NP V»: agent=Theme | | 3 | **press** | participle | | two touching surfaces and rough surfaces and surfaces *not said here* | | | | hard, together *property* | vn push-12-1-1 «NP V PP»: agent=Agent | | 4 | **grip** | present | | | | | | | vn touch-20-1 «NP V NP»: 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:physics:006-friction-the-grip.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): R5-strong ×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: [Friction: the grip that stops and helps, 4](https://md.mova.elamur.ai/free/en/corpora/school/physics/6-friction-the-grip/4/) - next →: [Friction: the grip that stops and helps, 6](https://md.mova.elamur.ai/free/en/corpora/school/physics/6-friction-the-grip/6/) - ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/physics/6-friction-the-grip/)