arrow
ball
brain
business
chaos
complex
complicated
concept
confused
difficult
difficulty
doodle
drawn
easy
flat
goal
hand
icon
insane
knot
line
loading
mess
messy
mind
multiple
order
path
point
problem
process
psychotherapy
purpose
puzzle
route
scrawl
scribble
simple
simplicity
simplify
sketch
solution
solving
straight
tangle
tricky
unclear
vector
way
wire