['virus', 'evolve', 'EmptyParameter', 'planet', 'on'] ['life', 'know', 'exist', 'EmptyParameter', 'EmptyParameter'] ['life', 'exist', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter']
["Synset('program.n.07')", 'appear-48.1.1', 'EmptyParameter', '<LOCATION>1', 'on'] ["Synset('record.n.01')", 'comprehend-87.2', 'exist-47.1', 'EmptyParameter', 'EmptyParameter'] ["Synset('record.n.01')", 'exist-47.1', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter']
The virus could have evolved on an M-class planet, where only carbon-based life is known to exist.
the Synset('program.n.07') could have evolved on an m-class planet, where only carbon-based Synset('record.n.01') is known to exist.