['it', 'construct', 'EmptyParameter', 'alloy', 'of']
['<PRP>', 'remedy-45.7', 'EmptyParameter', "Synset('substance.n.01')", 'of']
It is nineteen kilometers in diameter and constructed of a single alloy.
<PRP> is <NUMBER>2 Synset('linear_unit.n.01') in Synset('dimension.n.01') and constructed of a Synset('individual.a.01') Synset('substance.n.01').