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

Sentence: 'a group of people in a field flying kites'. Count the occurrences of the word 'a' in the given sentence.
2

Sentence: 'a man riding skis on a snow covered ski slope'. Count the occurrences of the word 'a' in the given sentence.
2

Sentence: 'a clock on a tall tower with a sky background'. Count the occurrences of the word 'a' in the given sentence.

3