CREATE TABLE "maryland_counties_ranked_by_per_capita_i" (
  "county" text,
  "per_capita_income" text,
  "median_household_income" text,
  "population" real,
  "number_of_households" real
);

Question: What is the per capital income for Charles county?
SQL: SELECT "per_capita_income" FROM "maryland_counties_ranked_by_per_capita_i" WHERE "county"='charles';

Question: What is the per capital income for Washington county?
SQL: SELECT "per_capita_income" FROM "maryland_counties_ranked_by_per_capita_i" WHERE "county"='washington';