CREATE TABLE "biosynthesis" (
  "enzyme" text,
  "location" text,
  "substrate" text,
  "product" text,
  "chromosome" text,
  "omim" real,
  "porphyria" text
);

Question: What is the location of the enzyme Uroporphyrinogen iii Synthase?
SQL: SELECT "location" FROM "biosynthesis" WHERE "enzyme"='uroporphyrinogen iii synthase';

Question: What is protoporphyrin ix's substrate?
SQL: SELECT "substrate" FROM "biosynthesis" WHERE "product"='protoporphyrin ix';

Question: Which substrate has an OMIM of 176000?
SQL: SELECT "substrate" FROM "biosynthesis" WHERE "omim"=176000;