what is a variable sentence

A variable sentence is a sentence with a variable structure, meaning it can be rearranged or manipulated in different ways while still retaining its meaning and grammatical correctness. It can also contain variables or placeholders that can be substituted with different words or phrases, depending on the context. For example, "The cat sat on the mat" can be rearranged as "On the mat, the cat sat" or "Sat the cat on the mat." It can also include variables such as "X likes Y" where X and Y can be substituted with different words or phrases, such as "Mary likes John" or "The dog likes its bone."