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

Q: Sentence: 'a man is looking slyly at the camera while sitting at his laptop at a desk'. Count the occurrences of the word 'at' in the given sentence.

A: 3
****
Q: Sentence: 'a brown bear walks through the shade of many trees'. Count the occurrences of the word 'bear' in the given sentence.

A: 1
****
Q: Sentence: 'she was walking down the side walk with her umbrella open'. Count the occurrences of the word 'down' in the given sentence.

A:
1
****