if it is generally amusing from time to time 
(ROOT (SBAR (IN if) (S (NP (PRP it)) (VP (VBZ is) (ADVP (RB generally)) (ADJP (JJ amusing)) (PP (PP (IN from) (NP (NN time))) (PP (IN to) (NP (NN time))))))))
(ROOT (SBAR (IN ) (S (NP (PRP )) (VP (VBZ ) (ADVP (RB )) (ADJP (JJ )) (PP (PP (IN ) (NP (NN ))) (PP (IN ) (NP (NN ))))))))