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mysql> describe features;+--------------------------+-----------------+------+-----+---------+-------+| Field                    | Type            | Null | Key | Default | Extra |+--------------------------+-----------------+------+-----+---------+-------+| ratedpage_id             | int(8) unsigned | NO   | PRI |         |       | | words                    | double          | YES  |     | NULL    |       | | averagewordlength        | double          | YES  |     | NULL    |       | | averagenumberofsyllables | double          | YES  |     | NULL    |       | | numberofsentences        | double          | YES  |     | NULL    |       | | averagesentencelength    | double          | YES  |     | NULL    |       | | averagelengthofparagraph | double          | YES  |     | NULL    |       | | proportionofquestions    | double          | YES  |     | NULL    |       | | conjunctions             | double          | YES  |     | NULL    |       | | pronouns                 | double          | YES  |     | NULL    |       | | prepositions             | double          | YES  |     | NULL    |       | | nominalizations          | double          | YES  |     | NULL    |       | | colemanliau              | double          | YES  |     | NULL    |       | | fleschindex              | double          | YES  |     | NULL    |       | | kincaid                  | double          | YES  |     | NULL    |       | | smoggrading              | double          | YES  |     | NULL    |       | | ari                      | double          | YES  |     | NULL    |       | | fogindex                 | double          | YES  |     | NULL    |       | | tobe                     | double          | YES  |     | NULL    |       | | lix                      | double          | YES  |     | NULL    |       | | age                      | double          | YES  |     | NULL    |       | | length                   | double          | YES  |     | NULL    |       | | templates                | double          | YES  |     | NULL    |       | | external                 | double          | YES  |     | NULL    |       | | internal                 | double          | YES  |     | NULL    |       | | relative                 | double          | YES  |     | NULL    |       | | images                   | double          | YES  |     | NULL    |       | | paragraphs               | double          | YES  |     | NULL    |       | | categories               | double          | YES  |     | NULL    |       | | h2                       | double          | YES  |     | NULL    |       | | h3                       | double          | YES  |     | NULL    |       | | h4                       | double          | YES  |     | NULL    |       | | interlanguagelinks       | double          | YES  |     | NULL    |       | | referencecount           | double          | YES  |     | NULL    |       | | pagerank                 | double          | YES  |     | NULL    |       | +--------------------------+-----------------+------+-----+---------+-------+