CREATE TABLE "y" (
  "township" text,
  "county" text,
  "pop_2010" real,
  "land_sqmi" real,
  "water_sqmi" real,
  "latitude" real,
  "longitude" real,
  "geo_id" real,
  "ansi_code" real
);

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

Question: Which Land (sqmi) has a GEO ID smaller than 3800587900?
SQL: SELECT MIN("land_sqmi") FROM "y" 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 "y" WHERE "township"='yorktown' AND "geo_id"<3802187940;