As late as the 1950s, for example, only one Mexican served as a <e1>policeman</e1> in the entire Chicago <e2>police force</e2>.
As late as the
As late as the 1950s, for example, only one Mexican served as a policeman in the entire Chicago police force.
<triplet> policeman <subject> police force <object> Member-Collection(e1,e2)