--- title: A gas boiler can leak carbon monoxide, a poison gas you cannot see o… — Heating, water pipes and drains · tree and pragmatics description: A gas boiler can leak carbon monoxide, a poison gas you cannot see or smell, so every home with one needs a carbon monoxide alarm. Who acts: gas boiler, you, home. A sentence of the lesson «Heating, water pipes and drains» of the technology course of Mova's primary school with its dependency tree an --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/technology/13-heating-water-pipes-and-drains/6/) [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/) / [Heating, water pipes and drains](https://md.mova.elamur.ai/free/en/corpora/school/technology/13-heating-water-pipes-and-drains/) / 6 # Heating, water pipes and drains, sentence 6 A gas boiler can leak carbon monoxide, a poison gas you cannot see or smell, so every home with one needs a carbon monoxide alarm. **Who acts:** gas boiler, you, home · **What happens:** leak, not see, smell, need · **To what, where:** carbon monoxide, poison gas, monoxide alarm This is a sentence of the lesson «Heating, water pipes and drains» 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 (gas boiler, you, home), what happens, when and where, as Mova's frames read it from the tree. ## The tree {#tree} ```conllu # sent_id = school:technology:013-heating-water-pipes-and-drains.lesson:6 # text = A gas boiler can leak carbon monoxide, a poison gas you cannot see or smell, so every home with one needs a carbon monoxide alarm. # source = school lesson (ours) # course = technology # lesson = 013-heating-water-pipes-and-drains.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 ×1 1 A a DET DT Definite=Ind|PronType=Art 3 det _ _ 2 gas gas NOUN NN Number=Sing 3 compound _ _ 3 boiler boiler NOUN NN Number=Sing 5 nsubj _ _ 4 can can AUX MD VerbForm=Fin 5 aux _ _ 5 leak leak VERB VB VerbForm=Inf 0 root _ _ 6 carbon carbon NOUN NN Number=Sing 7 compound _ _ 7 monoxide monoxide NOUN NN Number=Sing 5 obj _ _ 8 , , PUNCT , _ 15 punct _ _ 9 a a DET DT Definite=Ind|PronType=Art 11 det _ _ 10 poison poison NOUN NN Number=Sing 11 compound _ _ 11 gas gas NOUN NN Number=Sing 7 appos _ _ 12 you you PRON PRP Case=Nom|Person=2|PronType=Prs 15 nsubj _ _ 13 can can AUX MD VerbForm=Fin 15 aux _ _ 14 not not PART RB Polarity=Neg 15 advmod _ _ 15 see see VERB VB VerbForm=Inf 11 acl:relcl _ _ 16 or or CCONJ CC _ 17 cc _ _ 17 smell smell VERB VB VerbForm=Inf 15 conj _ _ 18 , , PUNCT , _ 24 punct _ _ 19 so so ADV RB _ 24 advmod _ _ 20 every every DET DT PronType=Tot 21 det _ _ 21 home home NOUN NN Number=Sing 24 nsubj _ _ 22 with with ADP IN _ 23 case _ _ 23 one one NUM CD NumForm=Word|NumType=Card 21 nmod _ _ 24 needs need VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 5 parataxis _ Agree=R7-rel-agree|Haiku=5:conj 25 a a DET DT Definite=Ind|PronType=Art 28 det _ _ 26 carbon carbon NOUN NN Number=Sing 27 compound _ _ 27 monoxide monoxide NOUN NN Number=Sing 28 compound _ _ 28 alarm alarm NOUN NN Number=Sing 24 obj _ _ 29 . . 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 | **leak** | can | a gas boiler | carbon monoxide | | | | | vn substance\_emission-43.4-1 «PP.location V NP»: agent=Location monoxide=Source | | 2 | **not** **see** | can | you | a poison gas *not said here* | | | | | vn comprehend-87.2-1-1 «NP V NP»: agent=Experiencer gas=Stimulus | | 3 | **smell** | infinitive | you *not said here* | | | | | | vn smell\_emission-43.3 «NP V»: agent=Theme | | 4 | **need** | present | every home with one | a monoxide alarm | | | | | vn want-32.1-1-1 «NP V NP ADV»: agent=Pivot alarm=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:technology:013-heating-water-pipes-and-drains.lesson:6`. **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 ×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: [Heating, water pipes and drains, 5](https://md.mova.elamur.ai/free/en/corpora/school/technology/13-heating-water-pipes-and-drains/5/) - next →: [Heating, water pipes and drains, 7](https://md.mova.elamur.ai/free/en/corpora/school/technology/13-heating-water-pipes-and-drains/7/) - ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/technology/13-heating-water-pipes-and-drains/)