The deadline for donations from each class will be July 31.
( ( ( The deadline ) ( for ( donations ( from ( each class ) ) ) ) ) ( ( will ( be ( July 31 ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (NN deadline)) (PP (IN for) (NP (NP (NNS donations)) (PP (IN from) (NP (DT each) (NN class)))))) (VP (MD will) (VP (VB be) (NP (NNP July) (CD 31)))) (. .)))
There is no deadline for donations.
( There ( ( is ( ( no deadline ) ( for donations ) ) ) . ) )
(ROOT (S (NP (EX There)) (VP (VBZ is) (NP (NP (DT no) (NN deadline)) (PP (IN for) (NP (NNS donations))))) (. .)))