public int CompareTo(Pair other)
{
int comparison = InitialLetter.CompareTo(other.InitialLetter);
return(comparison == 0 ?
FinalLetter.CompareTo(other.FinalLetter) :
comparison);
}
private bool GetValidity() => IsDiphthong || (
IsConsonantPair && !(
InitialLetter == FinalLetter ||
InitialLetter.IsVoiced() != FinalLetter.IsVoiced() ||
(MorphologyHelper.CLUSTER_FORBIDDEN_SHARED_CHARS.Contains(InitialLetter) && MorphologyHelper.CLUSTER_FORBIDDEN_SHARED_CHARS.Contains(FinalLetter)) ||
(InitialLetter == 'x' && (FinalLetter == 'c' || FinalLetter == 'k')) || (FinalLetter == 'x' && (InitialLetter == 'c' || InitialLetter == 'k')) ||
(InitialLetter == 'm' && FinalLetter == 'z')
)
);