I want to know the answer to the following question:
How much do the lexicons of Czech and Slovak differ, according to on study?
All the background I'm provided with is that "One study showed that Czech and Slovak lexicons differed by 80 percent, but this high percentage was found to stem primarily from differing orthographies and slight inconsistencies in morphological formation; Slovak morphology is more regular (when changing from the nominative to the locative case, Praha becomes Praze in Czech and Prahe in Slovak).". Is that enough to answer the question?