CREATE TABLE table_56012 ("Agent" TEXT, "Melting / boiling point" TEXT, "Effectiveness as blood agent" FLOAT, "Persistence ,  open area" FLOAT, "Persistence ,  enclosed area" FLOAT, "Field stability" FLOAT, "Storage stability" FLOAT, "Toxicity as blood agent" FLOAT)

What is the storage stability of Arsine with a toxicity of 8, and field stability less than 5?
SELECT MIN("Storage stability") FROM table_56012 WHERE "Toxicity as blood agent" > '8' AND "Agent" = 'arsine' AND "Field stability" < '5'
SELECT MIN("Storage stability") FROM "table_56012" WHERE "Agent" = 'arsine' AND "Field stability" < '5' AND "Toxicity as blood agent" > '8'