public bool HasSameStem(StemInSentence o)
        {
            if (this.Stem == null || o?.Stem == null)
            {
                return(false);
            }

            return(this.Stem.Equals(o.Stem, StringComparison.InvariantCultureIgnoreCase));
        }
        public List <StemInSentence> GetStems(string text)
        {
            List <StemInSentence> result = new List <StemInSentence>();

            if (string.IsNullOrEmpty(text))
            {
                return(result);
            }
            text = text.Trim().ToLower();
            //check if its multiwords
            string[] words = text.Split(Separators, StringSplitOptions.RemoveEmptyEntries);
            //List<string> stems = hunspellStem(text);
            for (int i = 0; i < words.Count(); i++)
            {
                string word = words[i];
                if (Stemmer.StopWords.Contains(word)
                    //|| word.Length < 2
                    )
                {
                    continue;
                }

                string         sstem = Stemmer.Stem(word);
                StemInSentence s     = null;
                if (!string.IsNullOrEmpty(sstem))
                {
                    s = new StemInSentence(sstem, i);
                }
                else
                {
                    s = new StemInSentence(word, i);
                }

                result.Add(s);
            }
            return(result);
        }