question: When was Nanjing conquered by the Communist People 's Liberation Army ( PLA ) ?
answer: April 23 , 1949
turker_answer: Nanjing was conquered by the Communist People 's Liberation Army ( PLA ) in April 23 , 1949 .
rule-based: Nanjing was conquered by the Communist People 's Liberation Army ( PLA in April 23 , 1949 ) .