--- title: A stair lift is a seat on a rail driven by a small motor and battery… — Escalators and lifts · tree and pragmatics description: A stair lift is a seat on a rail driven by a small motor and battery, so it still works in a power cut; its rail is made to fit the stairs, even round corners. Who acts: stair lift, lift. A sentence of the lesson «Escalators and lifts» of the technology course of Mova's primary school with its depen --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/technology/26-escalators-and-lifts/20/) [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/) / [Technology](https://md.mova.elamur.ai/free/en/corpora/school/technology/) / [Escalators and lifts](https://md.mova.elamur.ai/free/en/corpora/school/technology/26-escalators-and-lifts/) / 20 # Escalators and lifts, sentence 20 A stair lift is a seat on a rail driven by a small motor and battery, so it still works in a power cut; its rail is made to fit the stairs, even round corners. **Who acts:** stair lift, lift · **What happens:** be, drive, work, make, fit · **To what, where:** seat, rail, stairs This is a sentence of the lesson «Escalators and lifts» of the technology 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 (stair lift, lift), what happens, when and where, as Mova's frames read it from the tree. ## The tree {#tree} ```conllu # sent_id = school:technology:026-escalators-and-lifts.lesson:20 # text = A stair lift is a seat on a rail driven by a small motor and battery, so it still works in a power cut; its rail is made to fit the stairs, even round corners. # source = school lesson (ours) # course = technology # lesson = 026-escalators-and-lifts.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): R7-rel-agree ×2 1 A a DET DT Definite=Ind|PronType=Art 3 det _ _ 2 stair stair NOUN NN Number=Sing 3 compound _ _ 3 lift lift NOUN NN Number=Sing 6 nsubj _ _ 4 is be AUX VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 6 cop _ _ 5 a a DET DT Definite=Ind|PronType=Art 6 det _ _ 6 seat seat NOUN NN Number=Sing 0 root _ _ 7 on on ADP IN _ 9 case _ _ 8 a a DET DT Definite=Ind|PronType=Art 9 det _ _ 9 rail rail NOUN NN Number=Sing 6 nmod _ _ 10 driven drive VERB VBN Tense=Past|VerbForm=Part|Voice=Pass 9 acl _ _ 11 by by ADP IN _ 14 case _ _ 12 a a DET DT Definite=Ind|PronType=Art 14 det _ _ 13 small small ADJ JJ Degree=Pos 14 amod _ _ 14 motor motor NOUN NN Number=Sing 10 obl:agent _ _ 15 and and CCONJ CC _ 16 cc _ _ 16 battery battery NOUN NN Number=Sing 14 conj _ _ 17 , , PUNCT , _ 21 punct _ _ 18 so so ADV RB _ 21 advmod _ _ 19 it it PRON PRP Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs 21 nsubj _ _ 20 still still ADV RB _ 21 advmod _ _ 21 works work VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 6 parataxis _ Agree=R7-rel-agree|Haiku=6:advcl 22 in in ADP IN _ 25 case _ _ 23 a a DET DT Definite=Ind|PronType=Art 25 det _ _ 24 power power NOUN NN Number=Sing 25 compound _ _ 25 cut cut NOUN NN Number=Sing 21 obl _ _ 26 ; ; PUNCT , _ 30 punct _ _ 27 its its PRON PRP$ Case=Gen|Gender=Neut|Number=Sing|Person=3|Poss=Yes|PronType=Prs 28 nmod:poss _ _ 28 rail rail NOUN NN Number=Sing 30 nsubj:pass _ _ 29 is be AUX VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 30 aux:pass _ _ 30 made make VERB VBN Tense=Past|VerbForm=Part|Voice=Pass 6 parataxis _ _ 31 to to PART TO _ 32 mark _ _ 32 fit fit VERB VB VerbForm=Inf 30 advcl _ _ 33 the the DET DT Definite=Def|PronType=Art 34 det _ _ 34 stairs stair NOUN NNS Number=Plur 32 obj _ _ 35 , , PUNCT , _ 38 punct _ _ 36 even even ADV RB _ 38 advmod _ _ 37 round round ADJ JJ Degree=Pos 38 amod _ Agree=R7-rel-agree|Haiku=38:case|HaikuPos=ADP:IN:_ 38 corners corner NOUN NNS Number=Plur 32 obl _ _ 39 . . PUNCT . _ 6 punct _ _ ``` ## Pragmatics {#pragmatics} No stored speech act for this sentence. | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **is a** | present | a stair lift | a seat | | a rail | | | tree rules | | 2 | **drive** | participle | | a rail *not said here* | | | | | vn nonvehicle-51.4.2-1 «NP.agent V»: agent=Agent | | 3 | **work** | present | lift | | | | still | in a power cut | vn employment-95.3 «NP V PP.theme»: agent=Agent in cut=Theme | | 4 | **make** | present · passive | | lift's rail | | | | | vn build-26.1-1 «NP.asset V NP»: subject=Product | | 5 | **fit** | to-infinitive | | the stairs | | | | round corners *obl* | vn adjust-26.9 «NP V NP»: agent=Agent stair=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:technology:026-escalators-and-lifts.lesson:20`. **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): R7-rel-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: [Escalators and lifts, 19](https://md.mova.elamur.ai/free/en/corpora/school/technology/26-escalators-and-lifts/19/) - next →: [Escalators and lifts, 21](https://md.mova.elamur.ai/free/en/corpora/school/technology/26-escalators-and-lifts/21/) - ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/technology/26-escalators-and-lifts/)