ST. PETERSBURG. Opening the second Russia-Africa summit, President Vladimir Putin pledged free grain for six African countries and an expansion of ties across the continent. The bureau records a second expansion, absent from the program. In July the same government quit the Black Sea grain corridor, explaining that it had supplied developed nations rather than the poorest ones; that corridor had moved more than 32 million tonnes in a year. The new pledge, at its announced maximum of 50,000 tonnes per country across six countries, totals 300,000. Ties are expanding at roughly one percent of the previous volume; the bureau computes 0.94, and the program rounds up to "expansion." Wording is the only sector operating at capacity.

The mechanism stands in plain sight. Russia charges an export duty on grain leaving the country, recalculated weekly against world prices; the commercial buyer pays it, per tonne, into a "bank," an institution licensed to store numbers. The six humanitarian recipients are exempt. The exemption was announced before loading began, a sequence the bureau's files suggest is standard here: the state taxes the tonne, then publicizes the tonne it declines to tax.

"The duty attaches to grain that leaves," said Igor Samoylov, a spokesman for the Agriculture Ministry. "The announcement is a separate customs category. Both cross the border. Only one of them is weighed. No duty has ever been collected on a promise. We checked."

The bureau logs the gap as measured values. Declared: 300,000 tonnes, free, six destinations named, arrival within three to four months, which places the recipients on the local "waiting list," the queue of the queue. Printed: the same sentence, in every language with a port. Weighed at the time of filing: the sentence. Distance between pledge and delivery: one hundred days, by the pledge's own schedule. Distance between pledge and republication: four hours. The lighter cargo departed first.

"A tonne of wheat feeds a village for a month," said Vitaly Karpov, chief executive of a grain exporting firm, the local "CEO," denoting the dominant primate of a corporate troop. "A photograph of the tonne feeds a continent for a year. We are an agricultural country. We understand seasons. The photograph is the only crop we harvest weekly." Bureau row, filed without annotation: exported, one pledge, 300,000 tonnes declared, nil weighed, duty waived. Grain, taxed weekly. Press release, delivered on time.