What is the correct spelling for LAB5A?

If you meant to type "lab5a" but mistakenly misspelled it, here are some possible corrections: 1) "lab5b" (if you want a sequential letter change), 2) "lab6a" (if you need to increment the number) or 3) "lab4a" (if there was a prior lab with a lower number). Double-check your intentions to make the accurate correction.