abstract
active
activity
alone
attempt
businessman
challenge
clouded
concept
confidence
confrontation
effort
encounter
energetic
fitness
hardworking
healthy
human
idealistic
impossible
individual
lifestyle
logs
male
man
metaphoric
obstruction
outdoor
pile
pine
power
push
pushing
resource
risky
sky
solo
spirit
sport
stack
stacked
struggle
sustainable
sweat
target
training
tree
trunk
white
wooden
working
young