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background
bright
building
ceiling
concept
corridor
danger
dark
design
direction
door
doorway
electric
emergency
escape
evacuation
exit
fire
floor
frame
green
guidance
hallway
help
hotel
icon
indoor
information
inside
interior
light
neon
rescue
room
route
run
safe
safety
security
sign
signboard
symbol
urgency
vibrant
wall
warning
way
white