( There ( ( are ( ( two ( compelling responses ) ) ( to ( ( this line ) ( of defense ) ) ) ) ) . ) )
(ROOT (S (NP (EX There)) (VP (VBP are) (NP (NP (CD two) (JJ compelling) (NNS responses)) (PP (TO to) (NP (NP (DT this) (NN line)) (PP (IN of) (NP (NN defense))))))) (. .)))
There are two compelling responses to this line of defense.
(ROOT (S (NP (JJ Inflammatory) (NN response)) (VP (VBZ is) (NP (NP (DT the) (JJ second) (NN line)) (PP (IN of) (NP (NN defense))))) (. .)))