public void setSpecialTokens(SpecialTokens specialTokens) {
        this.specialTokens = specialTokens;
    }
Sets a list of tokens (Strings) which should be returned as WORD tokens regardless
of their content. This list is used directly by the Tokenizer and should not be changed
after calling this. The tokenizer will not change it. Special tokens are case
sensitive.
container-search/src/main/java/com/yahoo/prelude/query/parser/Tokenizer.java