public bool RemoveLearnedUnknownWordIfExist(WordPair learnedWord)
{
bool unknownWordRemoved = false;
bool unknownWordExists = _wordsRepository.CheckIfUnknownWordAlreadyExist(learnedWord.Id);
if (unknownWordExists)
{
unknownWordRemoved = _wordsRepository.RemoveLearnedUnknownWord(learnedWord.Id);
}
return(unknownWordRemoved);
}