( ( ( ( ( ( This ( ( `` ( innate ( '' immune ) ) ) system ) ) ( provides ( ( a ( first line ) ) ( of defense ) ) ) ) , ) and ) ( , ( ( in vertebrates ) ( , ( also ( triggers ( a ( ( more adaptive ) ( , ( ( specific immune ) response ) ) ) ) ) ) ) ) ) ) . )
(ROOT (S (S (NP (DT This) (ADJP (`` ``) (JJ innate) ('' '') (JJ immune)) (NN system)) (VP (VBZ provides) (NP (NP (DT a) (JJ first) (NN line)) (PP (IN of) (NP (NN defense)))))) (, ,) (CC and) (S (, ,) (PP (IN in) (NP (NNS vertebrates))) (, ,) (ADVP (RB also)) (VP (VBZ triggers) (NP (DT a) (ADJP (RBR more) (JJ adaptive)) (, ,) (ADJP (JJ specific) (JJ immune)) (NN response)))) (. .)))
This "innate" immune system provides a first line of defense, and, in vertebrates, also triggers a more adaptive, specific immune response.
(ROOT (S (NP (NNS Vertebrates)) (VP (VBP are) (ADJP (JJ unique) (PP (IN in) (S (VP (VBG having) (S (NP (NP (JJ adaptive) (NN immunity)) (PP (IN in) (NP (NN addition)))) (VP (TO to) (VP (VB innate) (NP (NN immunity)))))))))) (. .)))