(S (S (BASENP (PRP They)) (VP (VP (VBD called) (PP (IN upon) (BASENP (DT the) (NN government)))) (S (VP (TO to) (VP (VB free) (NP (NP (BASENP (NN two) (VBN captured) (NNPS Somalis)) (VP (VBN held) (PP (IN in) (BASENP (NNP Spain))))) (COMMA ,) (SBAR (WHNP (WP who)) (S (VP (VBP are) (ADJP (JJ suspected) (PP (IN of) (S (VP (VBG being) (VP (VBN involved) (PP (IN in) (NP (BASENP (DT the) (NN seizure)) (PP (IN of) (NP (BASENP (DT the) (NNP Alakrana)) (CC and) (NP (BASENP (PRPD its) (NNS crew)) (PP (IN of) (BASENP (NN 36)))))))))))))))))))))) (PERIOD .))