is that it 's also one of the smartest 
(ROOT (VP (VBZ is) (SBAR (IN that) (S (NP (PRP it)) (VP (VBZ 's) (ADVP (RB also)) (NP (NP (CD one)) (PP (IN of) (NP (DT the) (JJS smartest)))))))))
(ROOT (VP (VBZ ) (SBAR (IN ) (S (NP (PRP )) (VP (VBZ ) (ADVP (RB )) (NP (NP (CD )) (PP (IN ) (NP (DT ) (JJS )))))))))