( ( WINTER ( STORM ( Winter storms ) ) ) ( ( include ( ( ( ( ( ( ( blizzards , ) ( ( heavy snowfall ) ( without wind ) ) ) , ) ( ( extended periods ) ( of ( cold weather ) ) ) ) , ) and ) ( ice storms ) ) ) . ) )
(ROOT (S (NP (NNP WINTER) (NNP STORM) (NNP Winter) (NNS storms)) (VP (VBP include) (NP (NP (NP (NNS blizzards)) (, ,) (NP (NP (JJ heavy) (NN snowfall)) (PP (IN without) (NP (NN wind))))) (, ,) (NP (NP (JJ extended) (NNS periods)) (PP (IN of) (NP (JJ cold) (NN weather)))) (, ,) (CC and) (NP (NN ice) (NNS storms)))) (. .)))
WINTER STORM Winter storms include blizzards, heavy snowfall without wind, extended periods of cold weather, and ice storms.
(ROOT (S (NP (DT A) (NN blizzard)) (VP (ADVP (RB usually)) (VBZ includes) (NP (NP (JJ heavy) (NN precipitation)) (, ,) (NP (JJ strong) (NNS winds)) (, ,) (CC and) (NP (NN surface) (NN air) (NNS temperatures))) (PP (IN below) (NP (CD 0) (JJ °) (NN c.))))))