Writing prompt: Tom and Sam

Student essay:
Sam and Tom are good friends.There are a lot of differences between Sam and Tom.Sam is smarter than Tom ,and Sam is taller than Tom.Sam is funnier and more hard-working than Tom.Who gets up earlier?Oh,Sam gets up as early as Tom.Tom is good at sports.He runs faster than Sam.He is thinner than Sam and friendlier than Sam,so he has lots of friends.If Tom and Sam help each other,they will be better.

Corrected essay:
Sam and Tom are good friends. There are a lot of differences between Sam and Tom. Sam is smarter than Tom, and Sam is taller than Tom. Sam is funnier and more hard-working than Tom. Who gets up earlier? Oh, Sam gets up as early as Tom. Tom is good at sports. He runs faster than Sam. He is thinner than Sam and friendlier than Sam, so he has lots of friends. If Tom and Sam help each other, they will be better.