To anybody who’s familiar with Everest climbing, it should come as no surprise that all of the men were Sherpa porters. Sherpas are Everest's workforce—the literal backbone of the climbing industry there. The men who were struck were either carrying 80-pound loads to Camps I and II, or they were on their way back to Base Camp. Without the hard work of the Sherpa porters, it would be largely impossible for Americans and Europeans with slightly above-average physiology, and well above-average disposable income, to scale the world’s tallest mountain.
Explanation: In a sonnet, a two line stanza is typically referred to couplet...and it's usually structurally at the ending of the poem...in the case of a fourteen line poem (sonnet).