What did you enjoy about reading the Lewis and Clark journals?
( What ( ( ( did you ) ( enjoy ( about ( reading ( the ( Lewis ( and ( Clark journals ) ) ) ) ) ) ) ) ? ) )
(ROOT (SBARQ (WHNP (WP What)) (SQ (VBD did) (NP (PRP you)) (VP (VB enjoy) (PP (IN about) (S (VP (VBG reading) (NP (DT the) (NNP Lewis) (CC and) (NNP Clark) (NNS journals))))))) (. ?)))
Was the adventure the most enjoyable aspect? 
( ( ( Was ( the adventure ) ) ( the ( most ( enjoyable aspect ) ) ) ) ? )
(ROOT (SQ (VBD Was) (NP (DT the) (NN adventure)) (NP (DT the) (JJS most) (NNP enjoyable) (NN aspect)) (. ?)))