( ( Patients ( with ( abdominal pain ) ) ) ( ( were ( as ( likely ( to ( have ( ( a ( positive ( test result ) ) ) ( as ( a ( negative ( test result ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (NNS Patients)) (PP (IN with) (NP (JJ abdominal) (NN pain)))) (VP (VBD were) (ADJP (RB as) (JJ likely) (S (VP (TO to) (VP (VB have) (NP (NP (DT a) (JJ positive) (NN test) (NN result)) (PP (IN as) (NP (DT a) (JJ negative) (NN test) (NN result))))))))) (. .)))
Patients with abdominal pain were as likely to have a positive test result as a negative test result.
(ROOT (S (NP (PRP We)) (VP (VBP call) (NP (NP (DT an) (JJ incorrect) (NN test) (NN result)) (SBAR (WHNP (WDT that)) (S (VP (MD should) (VP (VB have) (VP (VBN been) (ADJP (JJ positive) (NP (NP (DT a) (-LRB- -LRB-) (NN n) (-RRB- -RRB-)) (ADJP (JJ false) (JJ negative))))))))))) (. .)))