CREATE TABLE table_35787 ("Polling Firm" TEXT, "Date of Polling" TEXT, "Link" TEXT, "Liberal" FLOAT, "Green" FLOAT)

What june 21 22, 2011 polling has green smaller than 13?
SELECT "Polling Firm" FROM table_35787 WHERE "Green" < '13' AND "Date of Polling" = 'june 21–22, 2011'
SELECT "Polling Firm" FROM "table_35787" WHERE "Date of Polling" = 'june 21–22, 2011' AND "Green" < '13'