In this task, you need to count the occurrences of the given word in the given sentence.

Sentence: 'a little boy petting a prize winning llama'. Count the occurrences of the word 'little' in the given sentence.
1

Sentence: 'several young men playing a game on the grass near a body of water on a chilly day'. Count the occurrences of the word 'a' in the given sentence.
3

Sentence: 'a young man wearing a white shirt and red tie and a hat'. Count the occurrences of the word 'a' in the given sentence.

3