Identify the word problem and explain its context.

Word Problem Identification:

• The word problem is a classic river crossing puzzle.
• Context: 3 cannibals (людоеда) and their 3 servants (слуги) need to cross a river using a two-person boat (двухместной лодке).
• Constraint: If a servant is left alone with cannibals without their master present, the servant will be eaten. The cannibals will not harm servants if their master is present.
• Goal: Determine a sequence of crossings that allows all 6 individuals to reach the other side of the river safely, meaning no servant is eaten.