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

Sentence: 'a female in a blue top is sitting on a white chair'. Count the occurrences of the word 'a' in the given sentence.
3

Sentence: 'two elderly ladies in a house with a dog'. Count the occurrences of the word 'with' in the given sentence.
1

Sentence: 'a man is sitting on a wood stool in a home'. Count the occurrences of the word 'a' in the given sentence.

3