Head CT negative for acute bleed or mass.
 Head CT was normal, patient complains of headache
(ROOT (S (VP (VB Head) (NP (NP (NNP CT)) (ADJP (JJ negative) (PP (IN for) (NP (JJ acute) (NP (VB bleed) (CC or) (NP (NN mass)))))))) (. .)))
(ROOT (SBARQ (S (VP (VB Head) (SBAR (S (NP (NNP CT)) (VP (VBD was) (ADJP (JJ normal))))))) (, ,) (NP (NP (JJ patient) (VBZ complains)) (PP (IN of) (NP (NN headache))))))
( ( Head ( CT ( negative ( for ( acute ( ( bleed or ) mass ) ) ) ) ) ) . )
( ( ( Head ( CT ( was normal ) ) ) , ) ( ( patient complains ) ( of headache ) ) )