Boat puzzle | mind game

Boat puzzle Question: You have a fox, a chicken, and a sack of grain. You need to cross a river, but your boat can only carry you and one other item at a time. If you leave the fox alone with the chicken, the fox will eat the chicken. Likewise, if you leave the chicken alone with the grain, the chicken will eat the grain. How can you transport all three items across the river without any of them being eaten? Answer: