I don't really know what you mean by this, unless it's a line or strings.. .w.
In "A Pair of Silk Stockings," the silk stockings are a symbol of C.) MRS. SOMMER'S SELFISH NEEDS.
Instead of buying the things needed by her children from the little money she got, Mrs. Sommer's opted to buy the silk stockings she found while searching for items needed by her kids.
She was drawn to buy it because it gave her the illusion of being a rich lady with no worries in the world. The silk stockings gave her the chance to live her fantasy.
Gutenberg’s genius invention was to create a set of letters that could be pressed into “matrix” material, which was then filled with a lead alloy to make type. You got one of each letter in a font of type. If you needed 100 of the letter E, you molded what you needed. If a letter was starting to wear out, you threw it back in the pot and made a new one. Gutenberg's printing press spread literature to the masses for the first time in an efficient, durable way, shoving Europe headlong into the original information age. Being able to print in quantity meant more people could gain access to learning, and more people could create new ideas.