Table: kip_lagat_florence_2006
Columns: year
competition
venue
position
notes

Question: Name the lowest year for 12th position
SQL: SELECT MIN("year") FROM kip_lagat_florence_2006 WHERE "position" = '12th'

Question: Tell me the competition for half marathon
SQL: SELECT "competition" FROM kip_lagat_florence_2006 WHERE "notes" = 'half marathon'