id	keyword
ar-20311	production
ar-20311	iran
ar-20311	capital
ar-20311	capitalist
ar-20311	rural
ar-20311	land
ar-20311	development
ar-20311	economy
ar-20311	process
ar-20311	ofthe
ar-20311	agriculture
ar-20311	new
ar-20311	labour
ar-20311	routes
ar-20311	mode
ar-20311	post
ar-20311	alternate
ar-20311	relations