How to index a CLOB column?

I have a need to index on a CLOB column.  Initial attempts to index will result in ORA-02373.

In research, I was able to find an that a LOB column could be moved to another tablespace then indexed.

 

So I plan to use these statements (below), to create a text index on CLOB column STATEMENT_TEXT.

Questions:          What storage should be used for the CLOB column?

                                What index type is needed to create a text index on the CLOB column?

 

ALTER TABLE ANY_STATEMENT MOVE TABLESPACE INFOWH2 STORAGE(INITIAL 4096K) LOB (STATEMENT_TEXT) STORE lobsegment (TABLESPACE INFOWH2 STORAGE (INITIAL 4096K