For the short term, its impact will be on a relatively small niche market.
( ( For ( the ( short term ) ) ) ( , ( ( its impact ) ( ( will ( be ( on ( a ( ( relatively small ) ( niche market ) ) ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN For) (NP (DT the) (JJ short) (NN term))) (, ,) (NP (PRP$ its) (NN impact)) (VP (MD will) (VP (VB be) (PP (IN on) (NP (DT a) (ADJP (RB relatively) (JJ small)) (NN niche) (NN market))))) (. .)))
The impact will be on just a small market of customized t-shirts.
( ( The impact ) ( ( will ( be ( on ( ( just ( a ( small market ) ) ) ( of ( customized t-shirts ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN impact)) (VP (MD will) (VP (VB be) (PP (IN on) (NP (NP (RB just) (DT a) (JJ small) (NN market)) (PP (IN of) (NP (VBN customized) (NNS t-shirts))))))) (. .)))