We are concerned that the significant emissions reductions are required too quickly.
( We ( ( are ( concerned ( that ( ( the ( significant ( emissions reductions ) ) ) ( are ( required ( too quickly ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP We)) (VP (VBP are) (ADJP (VBN concerned) (SBAR (IN that) (S (NP (DT the) (JJ significant) (NNS emissions) (NNS reductions)) (VP (VBP are) (VP (VBN required) (ADVP (RB too) (RB quickly)))))))) (. .)))
We are completely unconcerned about emissions.
( We ( ( are ( completely ( unconcerned ( about emissions ) ) ) ) . ) )
(ROOT (S (NP (PRP We)) (VP (VBP are) (ADJP (RB completely) (JJ unconcerned) (PP (IN about) (NP (NNS emissions))))) (. .)))