( ( For ( many applications ) ) ( , ( ( ( ( four to ) six ) weeks ) ( ( is typical ) . ) ) ) )
(ROOT (S (PP (IN For) (NP (JJ many) (NNS applications))) (, ,) (NP (QP (CD four) (TO to) (CD six)) (NNS weeks)) (VP (VBZ is) (ADJP (JJ typical))) (. .)))
For many applications, four to six weeks is typical.
(ROOT (S (NP (EX There)) (VP (VBP are) (NP (NP (QP (CD four) (TO to) (CD six)) (NNS weeks)) (SBAR (S (VP (VBP are) (PP (IN in) (NP (NP (DT the) (NN life) (NN cycle)) (PP (IN of) (NP (NNS ladybugs)))))))))) (. .)))