alert
arrow
background
black
brick
bright
building
building sign
concrete
corridor
danger
dark
design
direction
directional marker
door
electric
emergency
escape
evacuation
exit
fire
glowing
guidance
hall
hanging
help
icon
illuminated
information
instruction
light
lighted
mounted
neon
night
object
office
parking
red
room
route
safe
safety
security
sign
symbol
wall
warning
way
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