Question:
A man is playing a piano.

What is a sentence that would be (on a scale from 0 to 5) a 3 out of 5 in terms of textual similarity to the above sentence?

Answer:
A boy is playing the piano.

Question:
An adult male wearing a backpack walks and looks to the left.

What is a sentence that would be (on a scale from 0 to 5) a 4 out of 5 in terms of textual similarity to the above sentence?

Answer:
The man in the backpack looks to his left.

Question:
A race car driver is driving his car through the mud.

What is a sentence that would be (on a scale from 0 to 5) a 0 out of 5 in terms of textual similarity to the above sentence?

Answer:
The black dog is running through the snow.