( Figures ( ( rounded ( to ( three ( significant digits ) ) ) ) . ) )
(ROOT (S (NP (NNS Figures)) (VP (VBD rounded) (PP (TO to) (NP (CD three) (JJ significant) (NNS digits)))) (. .)))
Figures rounded to three significant digits.
(ROOT (S (NP (NNP Rounding)) (VP (VBZ is) (SBAR (WHADVP (WRB when)) (S (NP (QP (CD one) (CC or) (JJR more)) (NN ending) (NNS digits)) (VP (VBP are) (VP (VBN dropped) (S (VP (TO to) (VP (VB get) (NP (NP (DT the) (JJ correct) (NN number)) (PP (IN of) (NP (JJ significant) (NNS figures)))))))))))) (. .)))