the one-liners are snappy , the situations volatile and 
(ROOT (S (S (NP (DT the) (CD one) (HYPH -) (NNS liners)) (VP (VBP are) (ADJP (JJ snappy)))) (, ,) (S (NP (DT the) (NNS situations)) (ADJP (JJ volatile))) (CC and)))
(ROOT (S (S (NP (DT ) (CD ) (HYPH ) (NNS )) (VP (VBP ) (ADJP (JJ )))) (, ) (S (NP (DT ) (NNS )) (ADJP (JJ ))) (CC )))