Number of testimonies
( Number ( of testimonies ) )
(ROOT (NP (NP (NNP Number)) (PP (IN of) (NP (NNS testimonies)))))
There are no testimonies.
( There ( ( are ( no testimonies ) ) . ) )
(ROOT (S (NP (EX There)) (VP (VBP are) (NP (DT no) (NNS testimonies))) (. .)))