id	keyword
easat-4491	transport
easat-4491	railway
easat-4491	corridors
easat-4491	international
easat-4491	freight
easat-4491	infrastructure
easat-4491	vol
easat-4491	logistics
easat-4491	china
easat-4491	development
easat-4491	european
easat-4491	authors
easat-4491	role