( Gases ( ( ( have ( lower density ) ) ( than ( ( ( ( other states ) ( of matter ) ) , ) ( such ( as ( ( solids and ) liquids ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNS Gases)) (VP (VBP have) (NP (JJR lower) (NN density)) (PP (IN than) (NP (NP (JJ other) (NNS states)) (PP (IN of) (NP (NN matter))) (, ,) (PP (JJ such) (IN as) (NP (NNS solids) (CC and) (NNS liquids)))))) (. .)))
Gases have lower density than other states of matter, such as solids and liquids .
(ROOT (S (NP (NNS Gases)) (VP (VBP have) (NP (DT the) (JJS lowest) (NN density))) (. .)))