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

[EX Q]: Sentence: 'a girl riding a bike wth a dog chasing her'. Count the occurrences of the word 'a' in the given sentence.
[EX A]: 3

[EX Q]: Sentence: 'couple of people sitting out in the snow with skis beside them'. Count the occurrences of the word 'them' in the given sentence.
[EX A]: 1

[EX Q]: Sentence: 'a kitchen with an old fashioned stove and some plates sitting on some shelves'. Count the occurrences of the word 'some' in the given sentence.
[EX A]:
2