( ( The ( deadline time ) ) ( ( was ( ( established ( ( approximately two ) weeks ) ) ( before ( the ( last ( class period ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN deadline) (NN time)) (VP (VBD was) (VP (VBN established) (NP (QP (RB approximately) (CD two)) (NNS weeks)) (PP (IN before) (NP (DT the) (JJ last) (NN class) (NN period))))) (. .)))
The deadline time was established approximately two weeks before the last class period.
(ROOT (S (NP (DT The) (JJ fetal) (NN period)) (VP (VBZ lasts) (NP (NP (QP (RB approximately) (CD 30)) (NNS weeks)) (NP (NNS weeks)))) (. .)))