Table: nd_townships_6
Columns: township
county
pop_2010
land_sqmi
water_sqmi
latitude
longitude
geo_id
ansi_code

Question: How much Latitude has a Water (sqmi) smaller than 0?
SQL: SELECT COUNT("latitude") FROM nd_townships_6 WHERE "water_sqmi" < 0

Question: Which Land (sqmi) has a GEO ID smaller than 3800587900?
SQL: SELECT MIN("land_sqmi") FROM nd_townships_6 WHERE "geo_id" < 3800587900

Question: Which Water (sqmi) has a Township of yorktown, and a GEO ID smaller than 3802187940?
SQL: SELECT MIN("water_sqmi") FROM nd_townships_6 WHERE "township" = 'yorktown' AND "geo_id" < 3802187940