accident
aim
alarm
background
caution
danger
design
element
emergency
equipment
extinguish
extinguisher
extinguishing
fire
flame
flammability
graphic
handle
heat
help
hose
icon
illustration
informational
instruct
instruction
isolated
label
lever
message
object
order
pin
protection
pull
red
rescue
safety
security
set
sign
signboard
squeeze
sweep
symbol
tool
urgency
warning
water
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