(S (S (SBAR (IN Since) (S (BASENP (NNP Canada)) (VP (VBZ has) (NP (BASENP (NN two) (JJ official) (NNS languages)) (PRN (LRB -LRB-) (BASENP (NNP English) (CC and) (NNP French)) (RRB -RRB-)))))) (S (BASENP (DT some) (NNS artists)) (VP (VP (VBD were) (PP (IN from) (BASENP (NNP Quebec)))) (CC and) (VP (VBD sung) (PP (IN in) (BASENP (NN French))))))) (PERIOD .))