( ( ( The ( two ( most ( common elements ) ) ) ) ( in ( the universe ) ) ) ( ( are ( ( hydrogen and ) stupidity ) ) . ) )
(ROOT (S (NP (NP (DT The) (CD two) (JJS most) (JJ common) (NNS elements)) (PP (IN in) (NP (DT the) (NN universe)))) (VP (VBP are) (NP (NN hydrogen) (CC and) (NN stupidity))) (. .)))
The two most common elements in the universe are hydrogen and stupidity.
(ROOT (S (NP (DT The) (NN sun)) (ADVP (RB mostly)) (VP (VBD made) (PRT (RP up)) (PP (IN of) (NP (DT the) (NN element) (NN hydrogen)))) (. .)))