CREATE TABLE table_22552 ("Nation" TEXT, "Rider" TEXT, "Horse" TEXT, "Cross Country Penalties" TEXT, "Total Penalties" TEXT, "Total Team Penalties" TEXT, "Team Rank" FLOAT)

Which nation is where the horse parkmore ed is?
SELECT "Nation" FROM table_22552 WHERE "Horse" = 'Parkmore Ed'
SELECT "Nation" FROM "table_22552" WHERE "Horse" = 'Parkmore Ed'