--- title: No life has been found yet; a 2025 rock sample has patterns that cou… — Mars · tree and pragmatics description: No life has been found yet; a 2025 rock sample has patterns that could be a sign of old microbes, but scientists say it is only a possible sign, not proof. Who acts: rock sample, patterns, scientists, life. A sentence of the lesson «Mars» of the space course of Mova's primary school with its depende --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/space/8-mars/4/) [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/) / [Mars](https://md.mova.elamur.ai/free/en/corpora/school/space/8-mars/) / 4 # Mars, sentence 4 No life has been found yet; a 2025 rock sample has patterns that could be a sign of old microbes, but scientists say it is only a possible sign, not proof. **Who acts:** rock sample, patterns, scientists, life · **What happens:** find, have, be, say · **To what, where:** life, patterns, sign, possible sign · **Speech:** someone speaks here This is a sentence of the lesson «Mars» 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 (rock sample, patterns, scientists, life), what happens, when and where, as Mova's frames read it from the tree. ## The tree {#tree} ```conllu # sent_id = school:space:008-mars.lesson:4 # text = No life has been found yet; a 2025 rock sample has patterns that could be a sign of old microbes, but scientists say it is only a possible sign, not proof. # source = school lesson (ours) # course = space # lesson = 008-mars.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 No no DET DT PronType=Neg 2 det _ _ 2 life life NOUN NN Number=Sing 5 nsubj:pass _ _ 3 has have AUX VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 5 aux _ _ 4 been be AUX VBN Tense=Past|VerbForm=Part 5 aux:pass _ _ 5 found find VERB VBN Tense=Past|VerbForm=Part|Voice=Pass 0 root _ _ 6 yet yet ADV RB _ 5 advmod _ _ 7 ; ; PUNCT : _ 12 punct _ _ 8 a a DET DT Definite=Ind|PronType=Art 11 det _ _ 9 2025 2025 NUM CD NumForm=Digit|NumType=Card 10 nummod _ _ 10 rock rock NOUN NN Number=Sing 11 compound _ _ 11 sample sample NOUN NN Number=Sing 12 nsubj _ _ 12 has have VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 5 parataxis _ Agree=R7-rel-agree|Haiku=5:conj 13 patterns pattern NOUN NNS Number=Plur 12 obj _ _ 14 that that PRON WDT PronType=Rel 18 nsubj _ _ 15 could could AUX MD VerbForm=Fin 18 aux _ _ 16 be be AUX VB VerbForm=Inf 18 cop _ _ 17 a a DET DT Definite=Ind|PronType=Art 18 det _ _ 18 sign sign NOUN NN Number=Sing 13 acl:relcl _ _ 19 of of ADP IN _ 21 case _ _ 20 old old ADJ JJ Degree=Pos 21 amod _ _ 21 microbes microbe NOUN NNS Number=Plur 18 nmod _ _ 22 , , PUNCT , _ 25 punct _ _ 23 but but CCONJ CC _ 25 cc _ _ 24 scientists scientist NOUN NNS Number=Plur 25 nsubj _ _ 25 say say VERB VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 5 conj _ Agree=R7-rel-agree|Haiku=5:parataxis 26 it it PRON PRP Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs 31 nsubj _ _ 27 is be AUX VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 31 cop _ _ 28 only only ADV RB _ 31 advmod _ _ 29 a a DET DT Definite=Ind|PronType=Art 31 det _ _ 30 possible possible ADJ JJ Degree=Pos 31 amod _ _ 31 sign sign NOUN NN Number=Sing 25 ccomp _ _ 32 , , PUNCT , _ 34 punct _ _ 33 not not PART RB Polarity=Neg 34 advmod _ _ 34 proof proof NOUN NN Number=Sing 31 conj _ _ 35 . . 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 | **find** | present · perfect · passive | | no life | | | yet | | vn discover-84 «NP V NP»: subject=Topic | | 2 | **have** | present | a rock sample | patterns | | | | | vn birth-28.2-1 «NP V NP»: agent=Agent pattern=Patient | | 3 | **is a** | could | patterns | a sign | | | | of old microbes | tree rules | | 4 | **say** *speech: assert* | present | scientists | | | | | | vn say-37.7-1-1 «NP V that S»: agent=Agent | | 5 | **is a** | present | life | a possible sign and proof | | | | | tree rules | 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:008-mars.lesson:4`. **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: [Mars, 3](https://md.mova.elamur.ai/free/en/corpora/school/space/8-mars/3/) - next →: [Mars, 5](https://md.mova.elamur.ai/free/en/corpora/school/space/8-mars/5/) - ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/space/8-mars/)