(S (S (S (ADVP (RB Thirdly)) (COMMA ,) (S (BASENP (NN nobody)) (VP (MD can) (VP (VB be) (VP (VBN forced) (S (VP (TO to) (VP (VB testify) (PP (IN against) (BASENP (PRP himself))))))))))) (CONJP (COMMA ,) (CC and)) (S (SBAR (IN if) (S (BASENP (DT the) (NNP Prince)) (VP (VBD were) (S (VP (TO to) (VP (VP (VB make) (BASENP (JJ false) (NNS statements))) (PP (IN under) (BASENP (NN oath))))))))) (COMMA ,) (S (BASENP (PRP he)) (VP (MD could) (VP (ADVP (RB only)) (VP (VB be) (VP (VBN sued) (PP (IN for) (BASENP (NN perjury)))))))))) (PERIOD .))