id	keyword
ca-4170	aviation
ca-4170	time
ca-4170	global
ca-4170	air
ca-4170	nepal
ca-4170	international
ca-4170	airport
ca-4170	infrastructure
ca-4170	traffic
ca-4170	weather
ca-4170	aircraft
ca-4170	world
ca-4170	pilots
ca-4170	airlines
ca-4170	future
ca-4170	pressure
ca-4170	industry
ca-4170	work
ca-4170	space
ca-4170	flying
ca-4170	new
ca-4170	runway
ca-4170	passengers
ca-4170	flights
ca-4170	controllers