accident
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attention
background
beware
black
building
careful
caution
danger
down
exit
fall
floor
graphic
guidance
hazard
icon
illustration
information
isolated
label
man
notice
pedestrian
person
pictogram
precaution
prevention
risk
road
safety
security
sign
silhouette
slide
slip
slippery
street
surface
symbol
traffic
triangle
urban
walk
warning
wet
white
yellow