With no explanation, label text_A→text_B with either "DON'T KNOW", "NO" or "YES".
text_A: If the universe were reflected in a mirror, most of the laws of physics would be identical—things would behave the same way regardless of what we call "left" and what we call "right". This concept of mirror reflection is called "intrinsic parity" or simply "parity" ("P"). Gravity, the electromagnetic force, and the strong interaction all often behave in the same way regardless of whether or not the universe is reflected in a mirror, and thus are said to conserve parity (P-symmetry). However, the weak interaction does distinguish "left" from "right", a phenomenon called parity violation (P-violation).
text_B: Will an apple fall to the sky in our universe?
DON'T KNOW.