( ( ( The process ) ( in ( forming soil ) ) ) ( ( takes ( a ( long time ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (NN process)) (PP (IN in) (S (VP (VBG forming) (NP (NN soil)))))) (VP (VBZ takes) (NP (DT a) (JJ long) (NN time))) (. .)))
The process in forming soil takes a long time.
(ROOT (S (S (NP (DT This) (NN process)) (ADVP (RB usually)) (VP (VBZ takes) (NP (NP (DT the) (JJS longest) (NN amount)) (PP (IN of) (NP (NN time)))))) (: :) (S (NP (DT an) (NN ocean) (NN basin)) (VP (VBZ forms) (PP (IN between) (NP (CD two) (NNS continents))))) (. .)))
This process usually takes the longest amount of time: an ocean basin forms between two continents.