(S (S (BASENP (PRP He)) (VP (VBZ is) (NP (BASENP (DT the) (NN son)) (PP (IN of) (NP (BASENP (JJ current) (NNP Italian-born) (NNP Congress) (NNP President) (NNP Sonia) (NNP Gandhi)) (CONJP (COMMA ,) (CC and)) (NP (BASENP (JJ former) (NNP Prime) (NNP Minister) (NNP Rajiv) (NNP Gandhi)) (COMMA ,) (SBAR (WHNP (WP who)) (S (VP (VBD was) (VP (VBN assassinated) (PP (IN in) (BASENP (NN 1991))))))))))))) (PERIOD .))