CREATE TABLE table_203_791 (id DECIMAL, "represented" TEXT, "contestant" TEXT, "age" DECIMAL, "height" TEXT, "hometown" TEXT)

who was the tallest delegate for miss dominican republic in 2002 ?
SELECT "contestant" FROM table_203_791 ORDER BY "height" DESC LIMIT 1
SELECT "contestant" FROM "table_203_791" ORDER BY "height" DESC NULLS LAST LIMIT 1