--- title: A hydrogen vehicle mixes hydrogen with oxygen from the air in a fuel… — Electric cars and charging · tree and pragmatics description: A hydrogen vehicle mixes hydrogen with oxygen from the air in a fuel cell to make electricity, and the only thing from its exhaust is water; hydrogen is still hard to make cleanly and has few filling stations. Who acts: hydrogen vehicle, only thing. A sentence of the lesson «Electric cars and chargi --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/technology/19-electric-cars-and-charging/16/) [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/) / [Electric cars and charging](https://md.mova.elamur.ai/free/en/corpora/school/technology/19-electric-cars-and-charging/) / 16 # Electric cars and charging, sentence 16 A hydrogen vehicle mixes hydrogen with oxygen from the air in a fuel cell to make electricity, and the only thing from its exhaust is water; hydrogen is still hard to make cleanly and has few filling stations. **Who acts:** hydrogen vehicle, only thing · **What happens:** mix, make, be, have · **To what, where:** hydrogen, fuel cell, electricity, water, few filling stations This is a sentence of the lesson «Electric cars and charging» 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 (hydrogen vehicle, only thing), what happens, when and where, as Mova's frames read it from the tree. ## The tree {#tree} ```conllu # sent_id = school:technology:019-electric-cars-and-charging.lesson:16 # text = A hydrogen vehicle mixes hydrogen with oxygen from the air in a fuel cell to make electricity, and the only thing from its exhaust is water; hydrogen is still hard to make cleanly and has few filling stations. # source = school lesson (ours) # course = technology # lesson = 019-electric-cars-and-charging.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 ×1, R7-rel-agree ×2 1 A a DET DT Definite=Ind|PronType=Art 3 det _ _ 2 hydrogen hydrogen NOUN NN Number=Sing 3 compound _ _ 3 vehicle vehicle NOUN NN Number=Sing 4 nsubj _ _ 4 mixes mix VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 32 parataxis _ _ 5 hydrogen hydrogen NOUN NN Number=Sing 4 obj _ _ 6 with with ADP IN _ 7 case _ _ 7 oxygen oxygen NOUN NN Number=Sing 4 obl _ _ 8 from from ADP IN _ 10 case _ _ 9 the the DET DT Definite=Def|PronType=Art 10 det _ _ 10 air air NOUN NN Number=Sing 7 nmod _ _ 11 in in ADP IN _ 14 case _ _ 12 a a DET DT Definite=Ind|PronType=Art 14 det _ _ 13 fuel fuel NOUN NN Number=Sing 14 compound _ _ 14 cell cell NOUN NN Number=Sing 4 obl _ _ 15 to to PART TO _ 16 mark _ _ 16 make make VERB VB VerbForm=Inf 4 advcl _ Agree=R5-strong|Haiku=14:acl 17 electricity electricity NOUN NN Number=Sing 16 obj _ _ 18 , , PUNCT , _ 27 punct _ _ 19 and and CCONJ CC _ 27 cc _ _ 20 the the DET DT Definite=Def|PronType=Art 22 det _ _ 21 only only ADJ JJ Degree=Pos 22 amod _ _ 22 thing thing NOUN NN Number=Sing 27 nsubj _ _ 23 from from ADP IN _ 25 case _ _ 24 its its PRON PRP$ Case=Gen|Gender=Neut|Number=Sing|Person=3|Poss=Yes|PronType=Prs 25 nmod:poss _ _ 25 exhaust exhaust NOUN NN Number=Sing 22 nmod _ _ 26 is be AUX VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 27 cop _ _ 27 water water NOUN NN Number=Sing 5 conj _ _ 28 ; ; PUNCT , _ 29 punct _ _ 29 hydrogen hydrogen NOUN NN Number=Sing 5 conj _ _ 30 is be AUX VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 32 cop _ _ 31 still still ADV RB _ 32 advmod _ _ 32 hard hard ADJ JJ Degree=Pos 0 root _ _ 33 to to PART TO _ 34 mark _ _ 34 make make VERB VB VerbForm=Inf 32 xcomp _ Agree=R7-rel-agree|Haiku=32:csubj 35 cleanly cleanly ADV RB _ 34 advmod _ _ 36 and and CCONJ CC _ 37 cc _ _ 37 has have VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 32 conj _ _ 38 few few ADJ JJ Degree=Pos 40 amod _ _ 39 filling filling NOUN NN Number=Sing 40 compound _ Agree=R7-rel-agree|Haiku=40:amod|HaikuPos=ADJ:JJ:Degree=Pos 40 stations station NOUN NNS Number=Plur 37 obj _ _ 41 . . PUNCT . _ 4 punct _ Agree=R6-punct-agree|Haiku=32:punct ``` ## Pragmatics {#pragmatics} No stored speech act for this sentence. | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **mix** | present | a hydrogen vehicle | hydrogen and water and hydrogen | | a fuel cell | | with oxygen from the air | vn mix-22.1-1-1 «NP V NP PP.co-patient»: agent=Agent hydrogen=Patient with oxygen=Co-Patient | | 2 | **make** | to-infinitive | a hydrogen vehicle *not said here* | electricity | | | | | vn build-26.1-1 «NP.asset V NP»: agent=Asset electricity=Product | | 3 | **is a** | present | the only thing from thing's exhaust | water | | | | | tree rules | | 4 | **is** | present | | | | | still | hard *property* | tree rules | | 5 | **make** | to-infinitive | | | | | | cleanly *property* | vn build-26.1-1 «NP.asset V NP»: agent=Asset | | 6 | **have** | present | | few filling stations | | | | | vn birth-28.2-1 «NP V NP»: agent=Agent station=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:019-electric-cars-and-charging.lesson:16`. **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 ×1, 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: [Electric cars and charging, 15](https://md.mova.elamur.ai/free/en/corpora/school/technology/19-electric-cars-and-charging/15/) - next →: [Electric cars and charging, 17](https://md.mova.elamur.ai/free/en/corpora/school/technology/19-electric-cars-and-charging/17/) - ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/technology/19-electric-cars-and-charging/)