$1.$ Write a phrase describing a main theme of Sir Gawain and the Green Knight. $($one sentence$)$

$2.$ Next, find passages $($list by line numbers and brief quotations$)$ for the following $($image$,$ statement, and plot event$)$ that supports the main theme you stated above and explain the connection.

a$.$ an image $($not a literal image but an image from the text$)$

b$.$ a statement

c$.$ a plot event