"Ice cream is sweet."
Translation:Το παγωτό είναι γλυκό.
1-letter typos should be accepted as correct
They usually are, unless the result is a real (but incorrect) word.
For example, a typo of "swett" for "sweet" should be accepted but if you type "sweat", it will be rejected -- because "sweat" is a real English word but has a completely different meaning from "sweet".