there are laughs aplenty , and , as a bonus , 
(ROOT (S (NP (EX there)) (VP (VBP are) (NP (NP (NP (NNS laughs)) (ADJP (JJ aplenty))) (, ,) (CC and) (, ,) (PP (IN as) (NP (DT a) (NN bonus))) (, ,)))))
(ROOT (S (NP (EX )) (VP (VBP ) (NP (NP (NP (NNS )) (ADJP (JJ ))) (, ) (CC ) (, ) (PP (IN ) (NP (DT ) (NN ))) (, )))))