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

Sentence: 'a man on a skateboard jumping down a short flight of stairs'. Replace the letter 'o' with 'j' in the sentence.
a man jn a skatebjard jumping djwn a shjrt flight jf stairs

Sentence: 'a teddy bear playing a drum and a teddy bear playing a guitar'. Replace the letter 'd' with 'm' in the sentence.
a temmy bear playing a mrum anm a temmy bear playing a guitar

Sentence: 'tow military men in uniforms shaking hands in hallway'. Replace the letter 'a' with 'z' in the sentence.

tow militzry men in uniforms shzking hznds in hzllwzy