( ( Elemental mercury ) ( ( is ( ( a ( shiny ( , ( silver-white metal ) ) ) ) ( that ( is ( liquid ( at ( room temperature ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (JJ Elemental) (NN mercury)) (VP (VBZ is) (NP (NP (DT a) (JJ shiny) (, ,) (JJ silver-white) (NN metal)) (SBAR (WHNP (WDT that)) (S (VP (VBZ is) (ADJP (JJ liquid) (PP (IN at) (NP (NN room) (NN temperature))))))))) (. .)))
Elemental mercury is a shiny, silver-white metal that is liquid at room temperature.
(ROOT (S (NP (NNP Mercury)) (VP (VBZ is) (RB not) (NP (DT a) (JJ solid) (ADJP (RB even) (PP (IN at) (NP (NN room)))) (NN temperature))) (. .)))