We need to work together.
Oops. It's not stable. We need support beams. What can we use?
Stumps! Put that one right here.
This one's too tall.
This one's too short.
This one's just the right height.
But it's still not stable.
After some adjusting, it's almost done.
Now let's do a test to see if it's safe for Bikes to go on.
Is it safe for skateboards too?
We built the bridge we envisioned we could.
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