(S (S (BASENP (PRP They)) (VP (VBD were) (VP (VP (VBG walking) (NP (BASENP (DT the) (JJ proposed) (NN route)) (PP (IN of) (BASENP (DT a) (NN freeway) (NN bypass))))) (COMMA ,) (S (VP (VBG looking) (PP (IN for) (NP (BASENP (NNS sites)) (SBAR (WHNP (WDT that)) (S (VP (MD may) (VP (VB have) (NP (BASENP (NN significance)) (PP (TO to) (BASENP (JJ Aboriginal) (NNS people))))))))))))))) (PERIOD .))