A question-and-answer rhyme about a sheep with three bags of wool to share out. Its short, even lines and built-in call-and-response make it easy for a very young child to join in the "Yes sir, yes sir" before they can manage a full sentence. One of the oldest nursery rhymes still in everyday use, first printed in the eighteenth century.
From Mother Goose / Nursery Rhymes (traditional). See the whole collection.
Baa, baa, black sheep,
Have you any wool?
Yes, marry, have I,
Three bags full;
One for my master,
One for my dame,
But none for the little boy
Who cries in the lane.
Public domain. Text from The Real Mother Goose (Blanche Fisher Wright, 1916), via Project Gutenberg. View the source edition