['it', 'catch', 'kilometer', 'layer', 'in']
['<PRP>', 'get-13.5.1', "Synset('linear_unit.n.01')", "Synset('body_part.n.01')", 'in']
It is caught 10,000 kilometers beneath the surface in a layer of liquid hydrogen and methane.
<PRP> is caught 10,000 Synset('linear_unit.n.01') beneath the Synset('whole.n.02') in a Synset('body_part.n.01') of Synset('melted.a.01') Synset('substance.n.01') and <MISC>1.