( ( The council ) ( ( ( agreed ( last week ) ) ( to ( try ( this ( for ( a ( 30-day ( trial period ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN council)) (VP (VBD agreed) (NP (JJ last) (NN week)) (S (VP (TO to) (VP (VB try) (NP (NP (DT this)) (PP (IN for) (NP (DT a) (JJ 30-day) (NN trial) (NN period)))))))) (. .)))
The council agreed last week to try this for a 30-day trial 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)))) (. .)))