In this task, you need to count the number of times the given letter appears in the given sentence.

Sentence: 'a pizza is in a box on a table outside'. Find frequency of the letter 'u'
1

Sentence: 'a man standing in front of a statue near a metal pole'. Find frequency of the letter 'f'
2

Sentence: 'a blender has its top off and a pesto is inside'. Find frequency of the letter 'r'

1