은 살아있어요

is alive

→ 은
phrase Rare #26,262
is alive 은 is a topic marker attached to the noun before 살아있어요. This is a polite expression; the informal form is 은 살아있어 when attached to a noun ending in a consonant.
KO: 그리고 뱀은 살아있어요.
EN: And the snake is alive.

수정은 살아있어요

The crystal is alive.

— 아틀란티스: 잃어버린 제국 (2001)

영웅은 살아있어요

The hero is alive.

— 빈폴 (2019)

그리고 은 살아있어요

And the snake is alive.

— 해리 포터와 죽음의 성물 2 (2011)