( ( Solid ( green triangles ) ) ( ( are ( used ( to ( denote ( storms ( that ( are ( ( ( considered ( producers ( of hail ) ) ) , ) ( while ( ( hollow ( green triangles ) ) ( denote ( storms ( that ( are ( ( probable producers ) ( of ( hail ( -LRB- ( ( Federal ( Meteorological ( Handbook ( No. 11 ) ) ) ) -RRB- ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (JJ Solid) (JJ green) (NNS triangles)) (VP (VBP are) (VP (VBN used) (S (VP (TO to) (VP (VB denote) (NP (NP (NNS storms)) (SBAR (WHNP (WDT that)) (S (VP (VBP are) (VP (VBN considered) (NP (NP (NNS producers)) (PP (IN of) (NP (NN hail)))) (, ,) (SBAR (IN while) (S (NP (JJ hollow) (JJ green) (NNS triangles)) (VP (VBP denote) (NP (NP (NNS storms)) (SBAR (WHNP (WDT that)) (S (VP (VBP are) (NP (NP (JJ probable) (NNS producers)) (PP (IN of) (NP (NP (NN hail)) (PRN (-LRB- -LRB-) (NP (NNP Federal) (NNP Meteorological) (NNP Handbook) (NN No.) (NNP 11)) (-RRB- -RRB-)))))))))))))))))))))) (. .)))
Solid green triangles are used to denote storms that are considered producers of hail, while hollow green triangles denote storms that are probable producers of hail (Federal Meteorological Handbook No. 11).
(ROOT (S (NP (NP (NNP Hail)) (PP (IN during) (NP (DT a) (NN storm)))) (VP (VBZ describes) (NP (NP (NN water)) (PP (IN in) (NP (DT a) (JJ solid) (NN state))))) (. .)))