Then developed N/V, vomiting >12 times of clear vomitus last night.
 Patient has upper GI symptoms
(ROOT (S (NP (ADJP (RB Then) (VBN developed)) (NN N/V)) (, ,) (VP (VBG vomiting) (NP (NP (QP (JJR >) (CD 12) (NNS times))) (PP (IN of) (NP (JJ clear) (NN vomitus)))) (NP (JJ last) (NN night))) (. .)))
(ROOT (S (NP (NN Patient)) (VP (VBZ has) (NP (JJ upper) (NN GI) (NNS symptoms)))))
( ( ( Then developed ) N/V ) ( , ( ( ( vomiting ( ( > ( 12 times ) ) ( of ( clear vomitus ) ) ) ) ( last night ) ) . ) ) )
( Patient ( has ( upper ( GI symptoms ) ) ) )