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

Q: Sentence: 'a close up of a tennis player with a scary mask on'. Count the occurrences of the word 'a' in the given sentence.

A: 3
****
Q: Sentence: 'a young boy at a picnic table is holding half a donut'. Count the occurrences of the word 'a' in the given sentence.

A: 3
****
Q: Sentence: 'a black cat is sitting in a pot'. Count the occurrences of the word 'sitting' in the given sentence.

A:
1
****