If the difference between these two prices is large enough, the mailer could hire a trucking firm, as discussed above.
( ( If ( ( ( the difference ) ( between ( these ( two prices ) ) ) ) ( is ( large enough ) ) ) ) ( , ( ( the mailer ) ( ( could ( ( ( hire ( a ( trucking firm ) ) ) , ) ( as ( discussed above ) ) ) ) . ) ) ) )
(ROOT (S (SBAR (IN If) (S (NP (NP (DT the) (NN difference)) (PP (IN between) (NP (DT these) (CD two) (NNS prices)))) (VP (VBZ is) (ADJP (JJ large) (RB enough))))) (, ,) (NP (DT the) (NN mailer)) (VP (MD could) (VP (VB hire) (NP (DT a) (NN trucking) (NN firm)) (, ,) (SBAR (IN as) (S (VP (VBN discussed) (PP (IN above))))))) (. .)))
The mailer has the ability to hire a trucking firm.
( ( The mailer ) ( ( has ( the ( ability ( to ( hire ( a ( trucking firm ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN mailer)) (VP (VBZ has) (NP (DT the) (NN ability) (S (VP (TO to) (VP (VB hire) (NP (DT a) (NN trucking) (NN firm))))))) (. .)))