( ( A ( `` ( vector '' ) ) ) ( ( can ( be ( defined ( ( as `` ) ( ( an organism ) ( that ( ( carries pathogens ) ( from ( ( one host ) ( to another ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT A) (`` ``) (NN vector) ('' '')) (VP (MD can) (VP (VB be) (VP (VBN defined) (PP (IN as) (`` ``) (NP (NP (DT an) (NN organism)) (SBAR (WHNP (WDT that)) (S (VP (VBZ carries) (NP (NNS pathogens)) (PP (IN from) (NP (NP (CD one) (NN host)) (PP (TO to) (NP (DT another))))))))))))) (. .)))
A &quot;vector&quot; can be defined as &quot;an organism that carries pathogens from one host to another.
(ROOT (S (NP (NP (DT An) (NN organism)) (SBAR (WHNP (WDT that)) (S (VP (VBZ carries) (NP (NNS pathogens)) (PP (IN from) (NP (NP (CD one) (NN individual)) (PP (TO to) (NP (DT another))))))))) (VP (VBZ is) (VP (VBN called) (NP (DT a) (NN vector)))) (. .)))