( ( Implication ( of ( a ( ( ( positive or ) negative ) ( test result ) ) ) ) ) . )
(ROOT (NP (NP (NNP Implication)) (PP (IN of) (NP (DT a) (ADJP (JJ positive) (CC or) (JJ negative)) (NN test) (NN result))) (. .)))
Implication of a positive or 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))))))))))) (. .)))