Option 1: To express surprise or disbelief.
* "I memorized the poem 'Thanatopsis,' yet you said 'Joe'?"
* "I memorized the poem 'Thanatopsis,' but you just said 'Joe'?"
Option 2: To indicate a contrast between two things.
* "I memorized the poem 'Thanatopsis,' but all you could say was 'Joe.'"
* "Despite memorizing the poem 'Thanatopsis,' all you could say was 'Joe.'"
Option 3: To emphasize the memorization of the poem.
* "I memorized the poem 'Thanatopsis,' you know, even though you just said 'Joe.'"
* "I memorized the poem 'Thanatopsis,' and yet you said 'Joe.'"
The best way to rewrite the sentence depends on the specific context and what you are trying to convey.