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background
brick
building
concrete
construction
corridor
dark
directional
door
doorway
douse
electrical
emergency
escape
exit
extinguisher
fire
firesuppression
glass
glowing
green
head
hotel
illuminated
interior
life
lifesaver
light
mounted
neon
night
object
protection
safe
safety
security
sign
signs
spray
sprinkle
sprinkler
sprinklerhead
suppress
symbol
technology
wall
water
white