['exchange', 'fulfil', 'mission', 'EmptyParameter', 'EmptyParameter']
["Synset('geographic_point.n.01')", 'fulfil', "Synset('duty.n.02')", 'EmptyParameter', 'EmptyParameter']
Phlox states, so a Human/Vulcan cultural exchange is simply fulfilling that mission.
<PERSON>4 states, so a human/vulcan Synset('cultural.a.01') Synset('geographic_point.n.01') is simply fulfilling that Synset('duty.n.02').