--- title: A heat pump works like a fridge backwards: it collects heat from the… — Keeping cold: fridges, freezers and heat pumps · tree and pragmatics description: A heat pump works like a fridge backwards: it collects heat from the outside air or the ground, even in winter, because even cold air holds some heat, and pumps it into the house. Who acts: heat pump, pump, cold air. A sentence of the lesson «Keeping cold: fridges, freezers and heat pumps» of the te --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/technology/10-keeping-cold-fridges-freezers-and-heat-pumps/17/) [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/) / [Keeping cold: fridges, freezers and he…](https://md.mova.elamur.ai/free/en/corpora/school/technology/10-keeping-cold-fridges-freezers-and-heat-pumps/) / 17 # Keeping cold: fridges, freezers and heat pumps, sentence 17 A heat pump works like a fridge backwards: it collects heat from the outside air or the ground, even in winter, because even cold air holds some heat, and pumps it into the house. **Who acts:** heat pump, pump, cold air · **What happens:** work, collect, hold, pump · **To what, where:** fridge, heat, outside air, air, house This is a sentence of the lesson «Keeping cold: fridges, freezers and heat pumps» 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 (heat pump, pump, cold air), what happens, when and where, as Mova's frames read it from the tree. ## The tree {#tree} ```conllu # sent_id = school:technology:010-keeping-cold-fridges-freezers-and-heat-pumps.lesson:17 # text = A heat pump works like a fridge backwards: it collects heat from the outside air or the ground, even in winter, because even cold air holds some heat, and pumps it into the house. # source = school lesson (ours) # course = technology # lesson = 010-keeping-cold-fridges-freezers-and-heat-pumps.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 ×4, R7-rel-agree ×2 1 A a DET DT Definite=Ind|PronType=Art 3 det _ _ 2 heat heat NOUN NN Number=Sing 3 compound _ _ 3 pump pump NOUN NN Number=Sing 4 nsubj _ _ 4 works work VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 0 root _ _ 5 like like ADP IN _ 8 case _ _ 6 a a DET DT Definite=Ind|PronType=Art 7 det _ Agree=R5-strong|Haiku=8:det 7 fridge fridge NOUN NN Number=Sing 4 obl _ Agree=R5-strong|Haiku=8:compound 8 backwards backward ADV RB _ 4 advmod _ Agree=R7-rel-agree|Haiku=4:obl|HaikuPos=NOUN:NNS:Number=Plur 9 : : PUNCT : _ 11 punct _ _ 10 it it PRON PRP Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs 11 nsubj _ _ 11 collects collect VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 4 parataxis _ Agree=R7-rel-agree|Haiku=4:conj 12 heat heat NOUN NN Number=Sing 11 obj _ _ 13 from from ADP IN _ 16 case _ _ 14 the the DET DT Definite=Def|PronType=Art 16 det _ _ 15 outside outside ADJ JJ Degree=Pos 16 amod _ _ 16 air air NOUN NN Number=Sing 11 obl _ _ 17 or or CCONJ CC _ 19 cc _ _ 18 the the DET DT Definite=Def|PronType=Art 19 det _ _ 19 ground ground NOUN NN Number=Sing 16 conj _ _ 20 , , PUNCT , _ 23 punct _ _ 21 even even ADV RB _ 23 advmod _ _ 22 in in ADP IN _ 23 case _ _ 23 winter winter NOUN NN Number=Sing 11 obl _ _ 24 , , PUNCT , _ 29 punct _ _ 25 because because SCONJ IN _ 29 mark _ _ 26 even even ADV RB _ 28 advmod _ Agree=R5-strong|Haiku=27:advmod 27 cold cold ADJ JJ Degree=Pos 28 amod _ _ 28 air air NOUN NN Number=Sing 29 nsubj _ _ 29 holds hold VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 11 advcl _ _ 30 some some DET DT PronType=Ind 31 det _ _ 31 heat heat NOUN NN Number=Sing 29 obj _ _ 32 , , PUNCT , _ 34 punct _ _ 33 and and CCONJ CC _ 34 cc _ _ 34 pumps pump VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 29 conj _ Agree=R5-strong|Haiku=4:conj 35 it it PRON PRP Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs 34 obj _ _ 36 into into ADP IN _ 38 case _ _ 37 the the DET DT Definite=Def|PronType=Art 38 det _ _ 38 house house NOUN NN Number=Sing 34 obl _ _ 39 . . PUNCT . _ 4 punct _ _ ``` ## Pragmatics {#pragmatics} No stored speech act for this sentence. | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **work** | present | a heat pump | a fridge | | | | backward *property* | vn employment-95.3 «NP V»: agent=Agent | | 2 | **collect** | present | pump | heat | | the outside air or the ground | winter | | vn obtain-13.5.2 «NP V NP PP.source»: agent=Agent heat=Theme from air=Source | | 3 | **hold** | present | cold air | some heat | | | | | vn keep-15.2 «NP V NP»: agent=Agent heat=Theme | | 4 | **pump** | present | cold air *not said here* | air | | the house | | | vn spray-9.7-1 «NP V NP PP.destination»: agent=Agent it=Theme into house=Destination | 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:010-keeping-cold-fridges-freezers-and-heat-pumps.lesson:17`. **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 ×4, 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: [Keeping cold: fridges, freezers and he…, 16](https://md.mova.elamur.ai/free/en/corpora/school/technology/10-keeping-cold-fridges-freezers-and-heat-pumps/16/) - next →: [Keeping cold: fridges, freezers and he…, 18](https://md.mova.elamur.ai/free/en/corpora/school/technology/10-keeping-cold-fridges-freezers-and-heat-pumps/18/) - ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/technology/10-keeping-cold-fridges-freezers-and-heat-pumps/)