Question:
"Satyrs don't exist" - fine.

What is a sentence that would be (on a scale from 0 to 5) a 2 out of 5 in terms of textual similarity to the above sentence?

Answer:
"Gorgons don't exist" - fine.

Question:
The man is playing the guitar.

What is a sentence that would be (on a scale from 0 to 5) a 2 out of 5 in terms of textual similarity to the above sentence?

Answer:
The man is playing the piano.

Question:
A man wearing a hard hat removes his glasses as he speaks.

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:
The man took off his sunglasses while talking.