's not that funny -- which is just generally insulting 
(ROOT (S (VP (VBZ 's) (RB not) (ADJP (RB that) (JJ funny))) (, --) (SBAR (WHNP (WDT which)) (S (VP (VBZ is) (ADVP (RB just)) (ADJP (RB generally) (JJ insulting)))))))
(ROOT (S (VP (VBZ ) (RB ) (ADJP (RB ) (JJ ))) (, ) (SBAR (WHNP (WDT )) (S (VP (VBZ ) (ADVP (RB )) (ADJP (RB ) (JJ )))))))