adult
alert
attention
ban
broom
brush
caution
clean
cleaner
danger
design
equipment
floor
forbid
forbidden
graphic
house
household
icon
indication
information
isolated
janitor
job
male
man
mark
mop
no
not
notice
occupation
office
people
person
pictogram
professional
prohibited
red
restrict
risk
safety
service
sign
stop
symbol
warning
white
work
worker