In this task, you need to replace a letter in the sentence with another given letter.

Q: Sentence: 'a group of sheep is standing in a grassy field'. Replace the letter 'g' with 'p' in the sentence.

A: a proup of sheep is standinp in a prassy field
****
Q: Sentence: 'a giraffe walking in its natural habitat on the savannah'. Replace the letter 't' with 'u' in the sentence.

A: a giraffe walking in ius nauural habiuau on uhe savannah
****
Q: Sentence: 'a white dog and black cat lay on wood floor'. Replace the letter 'a' with 'u' in the sentence.

A:
u white dog und bluck cut luy on wood floor
****