Given the sentence "Three infants wearing sunhats are playing at the edge of the water on a beach." is it true that "Three infants and their mothers play in the water at a beach."? Let's be accurate as possible and think first.
At the edge of the water is not the same as in the water. The infant's mothers are not necessarily with them. Someone else could be looking after the infants. Final answer: it is not possible to tell.