CREATE TABLE table_13727 ("Protocol" CLOB, "Power Line" CLOB, "Radio-Frequency" CLOB, "Open Source?" CLOB, "Needs Neutral Wire?" CLOB)

What's the open source of X10 that no neutral wire needed?
SELECT "Open Source?" FROM table_13727 WHERE "Needs Neutral Wire?" = 'no' AND "Protocol" = 'x10'
SELECT "Open Source?" FROM "table_13727" WHERE "Needs Neutral Wire?" = 'no' AND "Protocol" = 'x10'