Becky: What's the wifi password?
Sylvia: <file_photo>
Becky: Is it Chester House 5 or 4?
Dan: which floor are you?
Becky: 4, so 4?
Dan: Hm, 5 works better in my opinion, fewer users ;)
Becky is on the 4th floor. There are fewer WIFI users on 5th floor.