(S (S (S (BASENP (DT The) (NNS tests) (NNS results)) (VP (VBD revealed) (BASENP (JJ multiple) (JJ arterial) (NNS blockages)))) (CC and) (S (BASENP (NNP Singh)) (VP (VP (VP (VBD returned) (PP (TO to) (BASENP (NN hospital)))) (PP (IN on) (BASENP (NNP Friday)))) (PP (IN for) (BASENP (JJ pre-surgery) (NNS tests)))))) (PERIOD .))