It is shameful that the Gage Canadian allows only  plaid. 
( It ( ( ( is shameful ) ( that ( ( the ( Gage Canadian ) ) ( allows ( only plaid ) ) ) ) ) . ) )
(ROOT (S (NP (PRP It)) (VP (VBZ is) (ADJP (JJ shameful)) (SBAR (IN that) (S (NP (DT the) (NNP Gage) (NNP Canadian)) (VP (VBZ allows) (NP (RB only) (JJ plaid)))))) (. .)))
Gage Canadian allows only teal.
( ( Gage Canadian ) ( ( allows ( only teal ) ) . ) )
(ROOT (S (NP (NNP Gage) (NNP Canadian)) (VP (VBZ allows) (ADJP (RB only) (JJ teal))) (. .)))