public IList <IWhatIs> GetMatchingWhatIsAnswers(string subject, string obj, string relation)
{
var allWhatIs = WhatIs.ToList <IWhatIs>();
var singularResults = WhatIs.Where(
whatIs => whatIs.Subject.ToLowerInvariant().Equals(subject.ToLowerInvariant()) &&
whatIs.Object.ToLowerInvariant().Equals(obj.ToLowerInvariant()) &&
whatIs.Relation.ToLowerInvariant().Equals(relation.ToLowerInvariant()))
.ToList <IWhatIs>();
if (singularResults.Count == 1)
{
return(singularResults);
}
return(WhatIs.Where(
whatIs => whatIs.Subject.ToLowerInvariant().Contains(subject.ToLowerInvariant()) &&
whatIs.Object.ToLowerInvariant().Equals(obj.ToLowerInvariant()) &&
whatIs.Relation.ToLowerInvariant().Equals(relation.ToLowerInvariant()))
.ToList <IWhatIs>());
}