( ( The ( summer solstice ) ) ( ( is ( ( ( ( ( June 21 ) , ) ( ( the ( longest day ) ) ( of ( the year ) ) ) ) , ) ( with ( ( 21 hours ) ( of daylight ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN summer) (NN solstice)) (VP (VBZ is) (NP (NP (NP (NNP June) (CD 21)) (, ,) (NP (NP (DT the) (JJS longest) (NN day)) (PP (IN of) (NP (DT the) (NN year)))) (, ,)) (PP (IN with) (NP (NP (CD 21) (NNS hours)) (PP (IN of) (NP (NN daylight))))))) (. .)))
The summer solstice is June 21, the longest day of the year, with 21 hours of daylight.
(ROOT (S (NP (NP (DT The) (NN number)) (PP (IN of) (NP (NP (NN daylight) (NNS hours)) (NP (DT each) (NN day))))) (VP (MD would) (VP (VB be) (ADJP (ADJP (JJS greatest)) (PP (IN during) (NP (NP (DT the) (NN summer)) (PP (IN near) (NP (DT the) (NN north) (NN pole)))))))) (. .)))
The number of daylight hours each day would be greatest during the summer near the north pole.