CREATE TABLE table_5218 ("Variant id" TEXT, "5pars_m_singleUTR splice" TEXT, "Coding" TEXT, "3pars_m_singleUTR sequence" TEXT, "GenBank id" TEXT)

What Coding has a 3 UTR sequence of 6a 4 with a GenBank id of hq021439?
SELECT "Coding" FROM table_5218 WHERE "3\u2019UTR sequence" = '6a 4' AND "GenBank id" = 'hq021439'
SELECT "Coding" FROM "table_5218" WHERE "3\u2019UTR sequence" = '6a 4' AND "GenBank id" = 'hq021439'