Points for effort, but try to be a bit more direct with these. Example, Nails are hit in with hammers so the hammer beats them. Hammers are metal so they rust. Rust is eliminated with oil. Oil is scarce because of gas prices.
As an example, I'd have said that the Marine would have been beaten by something related to the fact that he is in space or a marine. Like a Zerg rush, or gravity. Or reality.
But its up so the road stands. Find something that can beat a road. Its not impossible, just be creative.
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