access
alarm
alert
box
bright
cabinet
caution
city
control
emergency
equipment
extinguish
extinguisher
fire
firefighter
flame
foam
handle
heat
hose
hydrant
industrial
industry
isolated
necessary
nozzle
outdoor
pipe
plug
pressure
prevention
protection
red
rescue
safe
safety
security
service
sign
spray
street
system
tool
urgency
valve
wall
warning
water
white
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