Gencorp's rhymes with:
citicorp's, citicorps, citicorps', mcorp's, newscorp's, unicorp's, citicorp's, citicorps, citicorps', mcorp's, newscorp's, unicorp's
citicorp's, citicorps, citicorps', mcorp's, newscorp's, unicorp's, citicorp's, citicorps, citicorps', mcorp's, newscorp's, unicorp's