( ( Ground water ) ( ( is ( obtained ( from ( ( ( wells and ) springs ) ( that ( are ( open ( to aquifers ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NN Ground) (NN water)) (VP (VBZ is) (VP (VBN obtained) (PP (IN from) (NP (NP (NNS wells) (CC and) (NNS springs)) (SBAR (WHNP (WDT that)) (S (VP (VBP are) (ADJP (JJ open) (PP (TO to) (NP (NNS aquifers))))))))))) (. .)))
Ground water is obtained from wells and springs that are open to aquifers.
(ROOT (S (NP (NNP Dig) (NNP a)) (ADVP (RB well)) (VP (VBZ allows) (S (NP (NNS people)) (VP (TO to) (VP (VB access) (NP (NN water)) (PP (IN in) (NP (NP (DT an) (NN aquifer)) (SBAR (WHNP (WDT that)) (S (VP (VBZ does) (RB not) (VP (VB flow) (PP (IN from) (NP (NP (DT a) (NN spring)) (CC or) (NP (DT a) (NN geyser)))))))))))))) (. .)))