animation back 30 years , musicals back 40 years and 
(ROOT (NP (NP (NP (NN animation)) (ADVP (RB back) (NP (CD 30) (NNS years)))) (, ,) (NP (NP (NNS musicals)) (ADVP (RB back) (NP (CD 40) (NNS years)))) (CC and)))
(ROOT (NP (NP (NP (NN )) (ADVP (RB ) (NP (CD ) (NNS )))) (, ) (NP (NP (NNS )) (ADVP (RB ) (NP (CD ) (NNS )))) (CC )))