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

Sentence: 'a truck that has pictures painted on it sitting in front of a store'. Count the occurrences of the word 'a' in the given sentence.
2

Sentence: 'in the first picture there are stuffed sea animals in the second there are stuffed monkeys in the third there are stuffed tigers and elephants and in the fourth there are stuffed dogs'. Count the occurrences of the word 'in' in the given sentence.
4

Sentence: 'a public bathroom with four toilet stalls and four urinals on the wall'. Count the occurrences of the word 'four' in the given sentence.

2