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Anna Aulick was working the clerk’s window in the late 1950s when she met Albert Reynolds, a Standard Oil concessionaire from Montreal.

Business leaders said the wage increases — coupled with the new or increased healthcare payments — would wreak havoc on the city’s hotels and LAX concessionaires.

Eight years later, a private concessionaire is working to recover the aquatic ecosystem in Rio’s western zone.

There is no set schedule for these concessionaires — everything depends on attendance.

During Carnival festivities in February, the Waters of Rio concessionaire distributed water at the Sambadrome, where dancers in heavy costumes parade alongside gigantic floats.