How are we able to analyze symbols, as symbols? in other words, how does deconstruction work at a basic level

From his studies of coptic, champollion knew that the egyptian word for "sun" was pronounced rah. he wrote down the first two letters of that sound, ra. next he put a question mark for the unknown middle hieroglyph. then, at the end, he wrote ss, the sound of the last two hieroglyphs. he studied the combination: ra ? ss. suddenly he remembered a famous pharaoh whose name appeared in ancient greek chronicles and also in the biblical book of exodus: rameses, or ramesses. could this be a hieroglyphic representation of ramesses' name? based on the excerpt, what detail did champollion need to conclude that the hieroglyphics might represent ramesses’s name?

What is the primary setting and action of book 13 of the odyssey? a. calypso capturing ulysses on ogygia b. telemachus traveling to sparta c. ulysses retuming to ithaca d. ulysses traveling in disguise to crete

In the great gatsby, daisy is described as