( ( When ( ( ( ( the ( North Pole ) ) ( is ( ( tilted furthest ) ( from ( the sun ) ) ) ) ) and ) ( ( ( the ( sun 's ) ) ( daily ( maximum height ) ) ) ( is ( at ( its ( lowest point ) ) ) ) ) ) ) ( , ( ( ( the number ) ( of ( daylight hours ) ) ) ( ( is ( reduced ( to ( a minimum ) ) ) ) . ) ) ) )
(ROOT (S (SBAR (WHADVP (WRB When)) (S (S (NP (DT the) (NNP North) (NNP Pole)) (VP (VBZ is) (NP (NP (JJ tilted) (NN furthest)) (PP (IN from) (NP (DT the) (NN sun)))))) (CC and) (S (NP (NP (DT the) (NN sun) (POS 's)) (JJ daily) (JJ maximum) (NN height)) (VP (VBZ is) (PP (IN at) (NP (PRP$ its) (JJS lowest) (NN point))))))) (, ,) (NP (NP (DT the) (NN number)) (PP (IN of) (NP (NN daylight) (NNS hours)))) (VP (VBZ is) (VP (VBN reduced) (PP (TO to) (NP (DT a) (NN minimum))))) (. .)))
When the North Pole is tilted furthest from the sun and the sun's daily maximum height is at its lowest point, the number of daylight hours is reduced to a minimum.
(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.