id	keyword
ar-22520	mining
ar-22520	vale
ar-22520	power
ar-22520	workers
ar-22520	global
ar-22520	industry
ar-22520	union
ar-22520	labour
ar-22520	teck
ar-22520	usw
ar-22520	canada
ar-22520	new
ar-22520	bargaining
ar-22520	international
ar-22520	companies
ar-22520	brazil
ar-22520	company