CREATE TABLE table_203_41 (id NUMBER, "name" CLOB, "variant name ( s ) " CLOB, "source" CLOB, "source coordinates" CLOB, "length" CLOB, "mouth" CLOB, "mouth coordinates" CLOB)

which tributary has at least 3 variant names ?
SELECT "name" FROM table_203_41 WHERE "variant name(s)" >= 3
SELECT "name" FROM "table_203_41" WHERE "variant name(s)" >= 3