( ( ( Most species ) ( of caddiflies ) ) ( ( have ( ( a ( life cycle ) ) ( that ( ( spans ( about one ) ) year ) ) ) ) . ) )
(ROOT (S (NP (NP (JJS Most) (NNS species)) (PP (IN of) (NP (NNS caddiflies)))) (VP (VBP have) (NP (NP (DT a) (NN life) (NN cycle)) (SBAR (WHNP (WDT that)) (S (VP (VBD spans) (NP (QP (RB about) (CD one))) (NP (NN year))))))) (. .)))
Most species of caddiflies have a life cycle that spans about one year.
(ROOT (S (NP (NNP Life) (NN cycle)) (VP (VBZ is) (NP (NP (DT the) (NN term)) (PP (IN for) (NP (NP (DT the) (NN span)) (PP (IN in) (NP (NP (DT the) (NN life)) (PP (IN of) (NP (NP (DT an) (NN organism)) (PP (IN from) (NP (NP (CD one) (NN generation)) (PP (TO to) (NP (DT the) (JJ next))))))))))))) (. .)))