One day when the wind chill factor was nearing absolute zero, I took shelter in the service club.
( ( One day ) ( ( when ( ( the ( wind ( chill factor ) ) ) ( was ( nearing ( absolute zero ) ) ) ) ) ( , ( I ( ( ( took shelter ) ( in ( the ( service club ) ) ) ) . ) ) ) ) )
(ROOT (S (NP (CD One) (NN day)) (SBAR (WHADVP (WRB when)) (S (NP (DT the) (NN wind) (NN chill) (NN factor)) (VP (VBD was) (VP (VBG nearing) (NP (JJ absolute) (NN zero)))))) (, ,) (NP (PRP I)) (VP (VBD took) (NP (NN shelter)) (PP (IN in) (NP (DT the) (NN service) (NN club)))) (. .)))
The wind chill was below zero so I had to take shelter.
( ( The ( wind chill ) ) ( ( ( was ( below zero ) ) ( so ( I ( had ( to ( take shelter ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN wind) (NN chill)) (VP (VBD was) (PP (IN below) (NP (CD zero))) (SBAR (IN so) (S (NP (PRP I)) (VP (VBD had) (S (VP (TO to) (VP (VB take) (NP (NN shelter))))))))) (. .)))