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Expire	Country	Pic	Subject	Popularity
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Aluminum compounds	Antimony compounds	Barium compounds	Boron compounds	Bromine compounds
Calcium compounds	Carbon compounds	Chemical alloys	Chlorine compounds	Cobalt compounds
Cyanides or cyanates	Fluorine compounds	Gold compounds	Heterocyclic compounds	Iodine compounds
Iron compounds	Magnesium compounds	Oxygen compounds	Phosphorous compounds	Potassium compounds
Selenium compounds	Silicon or silicone or silicane compounds	Sodium compounds	Sulfur compounds	Tin compounds
Titanium compounds	Zinc compounds