Commodity market oil is traded through NYMEX under trading symbol HO. Purified terephthalic acid (PTA) is traded through ZCE in units of 5 tons with the trading symbol of TA. Ethanol is traded at CBOT in units of 29,000 U.S. gal under trading symbols AC (Open Auction) and ZE (Electronic). Precious metals currently traded on the commodity market include gold, platinum, palladium and silver which are sold by the troy ounce. One of the main exchanges for these precious metals is COMEX. According to the World Gold Council, investments in gold are the primary driver of industry growth. Gold prices are highly
Precious Illusions candy-sweet hook." The song "examines the pitfalls of relationships. In an interview for "Yahoo! Music", Morissette said of "Precious Illusions": "As I evolve and as I grow older, a lot of the things I thought to be truths when I was younger just really aren't, and that's disillusioning. And there is a grief and a loss of sorts that happens when I segue from one awareness to another. And that's what I was singing about on that song." Its lyrics describe a conflict between idealism and realism, and its protagonist refers to her childhood fancies as "precious illusions" that she