A dog is running through reeds towards the ocean .
The dog is digging through the trash in the alley of an urban environment .
A dog is running through reeds towards the ocean.
The dog is digging through the trash in the alley of an urban environment.
The dog cannot be digging and running at the same time since dogs use their forelegs to both run and dig.
The dog can not be digging and running at the same time since dogs use their forelegs to both run and dig .