( ( An acidophile ) ( ( is ( ( an ( extremophile organism ) ) ( which ( thrives ( in ( extremely ( acidic conditions ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT An) (NN acidophile)) (VP (VBZ is) (NP (NP (DT an) (JJ extremophile) (NN organism)) (SBAR (WHNP (WDT which)) (S (VP (VBZ thrives) (PP (IN in) (NP (RB extremely) (JJ acidic) (NNS conditions)))))))) (. .)))
An acidophile is an extremophile organism which thrives in extremely acidic conditions.
(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))))))))))