(S (S (S (BASENP (NNP Gandhi)) (VP (VBD was) (ADJP (BASENP (NN 14) (NNS years)) (JJ old)))) (SBAR (WHADVP (WRB when)) (S (NP (BASENP (PRPD his) (NN grandmother)) (PRN (COMMA ,) (BASENP (NNP Prime) (NNP Minister) (NNP Indira) (NNP Gandhi)) (COMMA ,))) (VP (VBD was) (VP (VBN assassinated) (PP (IN by) (BASENP (PRPD her) (NN security) (NNS guards)))))))) (PERIOD .))