building
bulldozer
carrying
caterpillar
clay
color
concrete
construction
demolish
dig
digging
dirt
dust
equipment
ground
heap
heavy
horizontal
industrial
industry
job
land
load
metal
mighty
mover
nobody
old
outdoors
pile
plough
plow
power
powerful
rough
sand
site
stones
structure
sun
track
transportation
urban
weight
work
working
yellow