[Brain challenge] Think again

[God'spen]

Now think again an answer my question:
A man was traveling across with a lion, a tuber of yam, and a goat.
he got to a river and had to make a cross. he has to cross the river with the Lion, Goat, and yam. but one at a time.
Question: how does he cross the river with those 3 things one at a time. remember, goat eats yam, lion will eats goat.. and so on. so he cant leave them together, cos they might eat them selves

PLS DON'T COME N SPOIL THE SHOW JUST SOLVE IT WELL