(S (S (ADVP (RB However)) (COMMA ,) (S (BASENP (PRP they)) (VP (VBP stress) (SBAR (IN that) (S (BASENP (NNS guards)) (VP (VP (VBD were) (ADVP (RB usually))) (ADJP (QT (DQL ``) (JJ respectful) (DQR '')) (PP (IN of) (BASENP (DT the) (NN Qur) (POS `) (NN an)))))))))) (PERIOD .))