['worker', 'concern', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter']
["Synset('arthropod.n.01')", 'amuse-31.1', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter']
Of the workers are concerned that his disease may be contagious.
of the Synset('arthropod.n.01') are concerned that <PRP> Synset('ill_health.n.01') may be contagious.