public int SequenceIdentifierFrequency(IEnumerable <string> gram) { string phrase = string.Join(".", gram); string key = UnicodeEncoder.GetUnicodeKeyFromString(phrase, word => ReadCommands.LookupWordId(Connection, Cache, word)); if (key == null) { return(0); } return(ReadCommands.LookupIdentifierSequenceFrequency(Connection, Cache, key)); }