H-2A aliens, as the only category of eligible aliens who reside in the United States temporarily, are particularly affected by the issue before the Commission because of their necessarily short periods of time in the United States.
( ( ( ( ( H-2A aliens ) , ) ( as ( ( ( the ( only category ) ) ( of ( eligible aliens ) ) ) ( who ( ( reside ( in ( the ( United States ) ) ) ) temporarily ) ) ) ) ) , ) ( ( ( are particularly ) ( ( affected ( by ( the issue ) ) ) ( before ( ( the Commission ) ( because ( of ( ( their ( ( necessarily short ) periods ) ) ( of ( time ( in ( the ( United States ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (NN H-2A) (NNS aliens)) (, ,) (PP (IN as) (NP (NP (DT the) (JJ only) (NN category)) (PP (IN of) (NP (JJ eligible) (NNS aliens))) (SBAR (WHNP (WP who)) (S (VP (VB reside) (PP (IN in) (NP (DT the) (NNP United) (NNPS States))) (ADVP (RB temporarily))))))) (, ,)) (VP (VBP are) (ADVP (RB particularly)) (VP (VBN affected) (PP (IN by) (NP (DT the) (NN issue))) (PP (IN before) (NP (NP (DT the) (NNP Commission)) (PP (RB because) (IN of) (NP (NP (PRP$ their) (ADJP (RB necessarily) (JJ short)) (NNS periods)) (PP (IN of) (NP (NP (NN time)) (PP (IN in) (NP (DT the) (NNP United) (NNPS States))))))))))) (. .)))
H-2A aliens are authorized to stay in the United States permanently.  
( ( H-2A aliens ) ( ( are ( authorized ( to ( ( stay ( in ( the ( United States ) ) ) ) permanently ) ) ) ) . ) )
(ROOT (S (NP (NN H-2A) (NNS aliens)) (VP (VBP are) (VP (VBN authorized) (S (VP (TO to) (VP (VB stay) (PP (IN in) (NP (DT the) (NNP United) (NNPS States))) (ADVP (RB permanently))))))) (. .)))