--- title: That is why, when the rings turn edge-on to us every 13 to 16 years,… — Saturn and its rings · tree and pragmatics description: That is why, when the rings turn edge-on to us every 13 to 16 years, they almost vanish, as they did in March 2025, like a sheet of paper seen from the side. Who acts: That, rings. A sentence of the lesson «Saturn and its rings» of the space course of Mova's primary school with its dependency tree a --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/space/12-saturn-and-its-rings/3/) [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/) / [Space](https://md.mova.elamur.ai/free/en/corpora/school/space/) / [Saturn and its rings](https://md.mova.elamur.ai/free/en/corpora/school/space/12-saturn-and-its-rings/) / 3 # Saturn and its rings, sentence 3 That is why, when the rings turn edge-on to us every 13 to 16 years, they almost vanish, as they did in March 2025, like a sheet of paper seen from the side. **Who acts:** That, rings · **What happens:** be, turn, vanish, see · **To what, where:** sheet, side This is a sentence of the lesson «Saturn and its rings» of the space 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 (That, rings), what happens, when and where, as Mova's frames read it from the tree. ## The tree {#tree} ```conllu # sent_id = school:space:012-saturn-and-its-rings.lesson:3 # text = That is why, when the rings turn edge-on to us every 13 to 16 years, they almost vanish, as they did in March 2025, like a sheet of paper seen from the side. # source = school lesson (ours) # course = space # lesson = 012-saturn-and-its-rings.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 ×2 1 That that PRON DT Number=Sing|PronType=Dem 3 nsubj _ _ 2 is be AUX VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 3 cop _ _ 3 why why ADV WRB PronType=Rel 0 root _ _ 4 , , PUNCT , _ 8 punct _ _ 5 when when SCONJ WRB _ 8 mark _ _ 6 the the DET DT Definite=Def|PronType=Art 7 det _ _ 7 rings ring NOUN NNS Number=Plur 8 nsubj _ _ 8 turn turn VERB VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 22 advcl _ Agree=R5-strong|Haiku=3:advcl 9 edge edge NOUN NN Number=Sing 11 compound _ Agree=R5-strong|Haiku=8:obj 10 - - PUNCT HYPH _ 9 punct _ _ 11 on on ADP IN _ 13 case _ _ 12 to to ADP IN _ 13 case _ _ 13 us we PRON PRP Case=Acc|Number=Plur|Person=1|PronType=Prs 8 obl _ _ 14 every every DET DT PronType=Tot 18 det _ _ 15 13 13 NUM CD NumForm=Digit|NumType=Card 18 nummod _ _ 16 to to ADP IN _ 17 case _ _ 17 16 16 NUM CD NumForm=Digit|NumType=Card 15 nmod _ _ 18 years year NOUN NNS Number=Plur 8 obl:unmarked _ _ 19 , , PUNCT , _ 22 punct _ _ 20 they they PRON PRP Case=Nom|Number=Plur|Person=3|PronType=Prs 22 nsubj _ _ 21 almost almost ADV RB _ 22 advmod _ _ 22 vanish vanish VERB VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 3 parataxis _ _ 23 , , PUNCT , _ 26 punct _ _ 24 as as SCONJ IN _ 26 mark _ _ 25 they they PRON PRP Case=Nom|Number=Plur|Person=3|PronType=Prs 26 nsubj _ _ 26 did do AUX VBD Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin 22 advcl _ _ 27 in in ADP IN _ 28 case _ _ 28 March March PROPN NNP Number=Sing 26 obl _ _ 29 2025 2025 NUM CD NumForm=Digit|NumType=Card 28 nmod:unmarked _ _ 30 , , PUNCT , _ 33 punct _ _ 31 like like ADP IN _ 33 case _ _ 32 a a DET DT Definite=Ind|PronType=Art 33 det _ _ 33 sheet sheet NOUN NN Number=Sing 22 obl _ _ 34 of of ADP IN _ 35 case _ _ 35 paper paper NOUN NN Number=Sing 33 nmod _ _ 36 seen see VERB VBN Tense=Past|VerbForm=Part|Voice=Pass 33 acl _ _ 37 from from ADP IN _ 39 case _ _ 38 the the DET DT Definite=Def|PronType=Art 39 det _ _ 39 side side NOUN NN Number=Sing 36 obl _ _ 40 . . PUNCT . _ 3 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** | present | That | | | | | why *property* | tree rules | | 2 | **turn** | present | the rings | | | | year | on us | vn roll-51.3.1 «NP V PP.trajectory»: agent=Theme on we=Trajectory | | 3 | **vanish** | present | rings *= ring* | | | | | like a sheet of paper; almost *property* | vn disappearance-48.2-1 «NP V»: agent=Theme | | 4 | **see** | participle | | a sheet of paper *not said here* | | the side | | | vn comprehend-87.2-1-1 «NP V»: agent=Experiencer | 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:space:012-saturn-and-its-rings.lesson:3`. **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 ×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: [Saturn and its rings, 2](https://md.mova.elamur.ai/free/en/corpora/school/space/12-saturn-and-its-rings/2/) - next →: [Saturn and its rings, 4](https://md.mova.elamur.ai/free/en/corpora/school/space/12-saturn-and-its-rings/4/) - ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/space/12-saturn-and-its-rings/)