Freshly cut wheat stands under approaching storm clouds on a property owned by farmer Scott Wason near Roma, west of Brisbane, in this October 29, 2011 file photo. Recent rains have improved the outlook for wheat farmers in Australia, the world's fourth largest wheat exporter, putting them on track for a bumper crop – especially if a wet weather La Nina pattern returns as some forecasts suggest. (Photo by Tim Wimborne/Reuters)
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