p_id|p_name|p_age|p_mf|
----+------+-----+----+
   1|Alex  |   19|M   |
   2|Kerry |   21|M   |
   3|Oli   |   19|F   |
   4|Senai |   18|F   |
   5|Pitter|   23|M   |
   6|Bentic|   19|M   |
   7|Pelin |   21|F   |
   8|John  |   19|M   |