( ( Rats Rats ) ( ( are ( ( large ( , ( robust rodents ) ) ) ( with ( hairless tails ) ) ) ) . ) )
(ROOT (S (NP (NNP Rats) (NNP Rats)) (VP (VBP are) (NP (NP (JJ large) (, ,) (JJ robust) (NNS rodents)) (PP (IN with) (NP (JJ hairless) (NNS tails))))) (. .)))
Rats Rats are large, robust rodents with hairless tails.
(ROOT (S (NP (NP (DT The) (NN name)) (PP (IN of) (NP (NP (DT the) (NN group)) (SBAR (IN that) (S (NP (NNS rats)) (VP (VBP are) (NP (NP (DT a) (NN part)) (PP (IN of))))))))) (VP (VBZ is) (NP (NNS rodents))) (. .)))