1
activist
adult
celebration
celebrations
concept
concert
crowd
day
demand
demonstration
engineer
equipment
event
family
festival
flag
hardhat
helmet
industrial
industry
international
job
labor
left
male
man
manager
may
meeting
movement
outdoors
parade
party
people
political
politics
professional
project
protest
rebellion
revolution
riot
safety
street
team
work
worker
workers