Bueno,
no
estoy
tan
seguro
de
eso.
Las
dos
son
diferentes
pero
buenas.
BWEH-noh, noh ehs-TOY tahn seh-GOO-roh deh EH-soh. lahs dohs sohn dee-feh-REHN-tehs PEH-roh BWEH-nahs
Well, I'm not so sure about that. They're both different but good.
Starting with "bueno" and saying "no estoy tan seguro" is a gentle way to disagree without being confrontational.