Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to identify a siberian cat [title] Feel for a dense coat. [step] Siberian cats are distinguished by their thick, triple-layer coats. Look for long guard hairs (the outermost coat), followed by the awn hairs (or middle coat) and then a soft supple undercoat.

Ending1: Watch out for any colored flags, triangular or wavy lines, and patches that move all over the cat's body. [substeps] Siberian cats are highly sanitary, but they are rarely sprayed, soled, cashed, or smeared. Ending2: The hair may gradually curl into a long, heavy bristle coat, especially when you're petting the cat. It's only a phase, though, so the fur will then start to look matted and coarse. Ending3: In their native russia, these many layers help protect siberian cats from the intense cold. The coats of siberian cats can come in all colors. Ending4: The awn hairs normally move very slowly and are packed into crevices. But they are still thick enough to be kicked up onto a cat's head.

Answer format: ending1/ending2/ending3/ending4