id	keyword
ftr-414	export clause
ftr-414	tax
ftr-414	u.s
ftr-414	court
ftr-414	goods
ftr-414	supra
ftr-414	ibm
ftr-414	exports
ftr-414	power
ftr-414	congress
ftr-414	note
ftr-414	taxes
ftr-414	states
ftr-414	exportation
ftr-414	cases
ftr-414	taxing
ftr-414	text
ftr-414	articles
ftr-414	taxation
ftr-414	page
ftr-414	duty
ftr-414	shoe
ftr-414	act
ftr-414	tax exports
ftr-414	export taxation
ftr-414	justice
ftr-414	united
ftr-414	levy
ftr-414	import