3d
argue
arm
box
brainstorm
bulb
business
character
competition
concept
conflict
creativity
debate
different
duel
economical
effective
electric
energy
fight
filament
fingers
fist
fluorescent
glow
hand
idea
illustration
incandescent
innovation
intelligence
invention
light
lightbulb
metaphor
patent
patent war
render
saving
science
shine
spiral
struggle
success
symbol
technology
thought
tungsten
unusual
violet
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