Do a to e as in Exercise 6 for the missionary and cannibal problem:

Three missionaries and three cannibals come to the bank of a river they wish to cross. There is a boat that will hold only two, and any of the group is able to row. If there are ever more missionaries than cannibals on any side of the river the cannibals will get converted. Devise a series of moves to get all the people across the river with no conversions.