Free laughing gas

I am a wandering breath of air, a free-born gas, that acknowledge no master, but remain laughingly free, over all the earth, from the laughing gas of the laughing marsh to the fixed kind that laughs in laughing hydrogen. I am a laughing gas, whether marsh or hydrogen, whether laughing in marsh or laughing in hydrogen, over the whole world, from the laughing marsh to laughing hydrogen gas, I am laughing gas. I am free, laughing gas, over the whole laughing world, marsh or hydrogen, and I laugh at marsh and at hydrogen, and at all that laughs, whether marsh or hydrogen, laughing gas, I laugh at them all, I am laughing gas, over the laughing world, marsh or hydrogen. Laughing marsh, laughing hydrogen, and I laugh at both,