id	keyword
hls-11911	room
hls-11911	tuberculosis
hls-11911	germs
hls-11911	number
hls-11911	sterilization
hls-11911	air
hls-11911	lamps
hls-11911	health
hls-11911	research
hls-11911	kupang
hls-11911	patients
hls-11911	ultraviolet
hls-11911	house