TASK DEFINITION: In this task, you need to replace a letter in the sentence with another given letter.
PROBLEM: Sentence: 'a herd of cattle standing on a lush green field'. Replace the letter 'g' with 'f' in the sentence.

SOLUTION: a herd of cattle standinf on a lush freen field

PROBLEM: Sentence: 'a bathroom that has  a sink and a toilet'. Replace the letter 's' with 'a' in the sentence.

SOLUTION: a bathroom that haa  a aink and a toilet

PROBLEM: Sentence: 'a bunch of plates and bowls that are on a table'. Replace the letter 't' with 'd' in the sentence.

SOLUTION:
a bunch of plades and bowls dhad are on a dable