Teacher: In this task, you are given a sentence in the Romanian language. Your job is to translate the Romanian sentence into the English language.
Teacher: Now, understand the problem? If you are still confused, see the following example:
Un bărbat pune brânză mărunțită pe o pizza.
Solution: A man is spreading shreded cheese on a pizza.
Reason: In the given translation process, the tense of both sentences, quantitative measures, entity name, the polarity of the sentence remains the same.

Now, solve this instance: Sunt cunoscute doar 29 de familii de broaște, dintre care majoritatea au fost numite până la mijlocul anilor 1800.
Student:
Only 29 families of frogs are known, most of which were named by the mid-1800s.