A first grade class comes in from recess. Teacher asks Alice: ""What did you do at recess?"" Alice says, ""I played in the sand box."" Teacher says ""that's good. Go to the blackboard, and if you can write 'sand' correctly, I'll give you a fresh-baked cookie."" She does and gets a cookie. Teacher asks Billy what he did at recess. Billy says, ""I played with Alice in sand box."" Teacher says, ""Good. If you write 'Box"" correctly on blackboard, I'll give you a fresh baked cookie."" Billy does, an…