Class Optimizer2

The Optimizer class is a Trie that will be reduced (have empty rows removed).

This is the result of allowing a joining of rows when there is no collision between non-null values in the rows. Information loss, resulting in the stemmer not being able to recognize words (as in Optimizer), is curtailed, allowing the stemmer to recognize words for which the original trie was built. Use of this class allows the stemmer to be self-teaching.