's very beavis and butthead , yet always seems to elicit a chuckle 
(ROOT (S (VP (VBZ 's) (NP (RB very) (NN beavis) (CC and) (NN butthead))) (, ,) (CC yet) (ADVP (RB always)) (VP (VBZ seems) (S (VP (TO to) (VP (VB elicit) (NP (DT a) (NN chuckle))))))))
(ROOT (S (VP (VBZ ) (NP (RB ) (NN ) (CC ) (NN ))) (, ) (CC ) (ADVP (RB )) (VP (VBZ ) (S (VP (TO ) (VP (VB ) (NP (DT ) (NN ))))))))