(S (S (S (VP (VP (VBN Born) (PP (IN in) (BASENP (NNP Belfast)))) (PP (IN on) (NP (BASENP (NNP March) (NN 18)) (COMMA ,) (BASENP (NN 1949)))))) (COMMA ,) (S (BASENP (NNP Higgins)) (VP (VP (VP (VBD became) (NP (BASENP (DT the) (NN champion)) (PP (IN of) (BASENP (DT the) (NNP World) (NNP Snooker) (NNP Championship))))) (PP (IN at) (NP (BASENP (DT the) (NN age)) (PP (IN of) (BASENP (NN 23)))))) (PP (IN in) (BASENP (NN 1972)))))) (PERIOD .))