['Tucker', 'use', 'EmptyParameter', 'host', 'as']
['<PERSON>1', 'eat-39.1-3', 'EmptyParameter', "Synset('living_thing.n.01')", 'as']
Tucker is not biologically related to the embryo but is merely being used as a host to grow the embryo.
<PERSON>1 is not biologically Synset('related.a.01') to the Synset('organism.n.01') but is merely being used as a Synset('living_thing.n.01') to grow the Synset('organism.n.01').