( ( The ( life span ) ) ( ( is ( one year ) ) . ) )
(ROOT (S (NP (DT The) (NN life) (NN span)) (VP (VBZ is) (NP (CD one) (NN year))) (. .)))
The life span is 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))))))))))))) (. .)))