Roleset proliferate.01 Verbnet Class: 1 "prosper, become abundant":

Roles:

Arg0:thing becoming abundant

Examples:

person: ns tense: present aspect: perfect voice: active form: participle


basic usage (-)
Joint-research programs have proliferated as U.S. companies seek to spread the risks and costs of commercializing new superconductors and to meet the challenges posed by foreign consortia, especially in Japan.
Arg0:	Joint-research programs
REL:	proliferated
ArgM-CAU:	as U.S. companies seek to spread the risks and costs of commercializing new superconductors and to meet the challenges posed by foreign consortia, especially in Japan

For a second I misparsed 'proliferate' and thought it meant "make into a foe of abortion".