public string ToNaturalText(DateDiff span, bool round)
 {
     return naturalTimeStrategy.ToNaturalText(span, round);
 }
 public string ToExactNaturalText(DateDiff span)
 {
     return(naturalTimeStrategy.ToExactNaturalText(span));
 }
 public string ToExactNaturalText(DateDiff span)
 {
     return naturalTimeStrategy.ToExactNaturalText(span);
 }
 public string ToNaturalText(DateDiff span, bool round)
 {
     return(naturalTimeStrategy.ToNaturalText(span, round));
 }