( ( ( Acidophiles or ) ( acidophilic organisms ) ) ( ( are ( those ( that ( thrive ( under ( ( ( highly acidic ) conditions ) ( -LRB- ( ( usually ( ( ( at ( pH 2.0 ) ) or ) below ) ) -RRB- ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (NNS Acidophiles)) (CC or) (NP (JJ acidophilic) (NNS organisms))) (VP (VBP are) (NP (NP (DT those)) (SBAR (WHNP (WDT that)) (S (VP (VBP thrive) (PP (IN under) (NP (NP (ADJP (RB highly) (JJ acidic)) (NNS conditions)) (PRN (-LRB- -LRB-) (PP (RB usually) (PP (IN at) (NP (QP (CD pH) (CD 2.0)))) (CC or) (PP (IN below))) (-RRB- -RRB-))))))))) (. .)))
Acidophiles or acidophilic organisms are those that thrive under highly acidic conditions (usually at pH 2.0 or below).
(ROOT (S (VP (VB Organisms) (SBAR (IN that) (S (NP (`` ``) (NN love) ('' '') (NNS acids)) (VP (VBP are) (VP (VBN known) (PP (IN as) (NP (NNS acidophiles))))))))))