Predicate: alternation

Roleset id: alternation.01 , Switching between two possibilities, vncls: , framnet:

Roles:

        Arg0: Causer of switch
        Arg1: First or all things switching
        Arg2: Secondary possibilities

Example: Arg0,1

        person: ns,  tense: ns,  aspect: ns,  voice: ns,  form: ns

        The Strongyloides life cycle is more complex than that of most nematodes with its alternation between free-living and parasitic cycles, and its potential for autoinfection and mulitplication within the host.

        Arg0: its
        Rel: alternation
        Arg1: between free-living and parasitic life cycles