Anchor: Allowances are the currency with which compliance with the SO2 emissions requirements is achieved.
Entailed: SO2 emissions requirements are set.
Contradiction: SO2 emissions do not currently have any standards.
Contradiction: They created a social structure which made everyone equal.
Contradiction: Delivery confirmation is available for priority and parcel post
Contradiction: It doesn't matter if a donor cars about the cause or not; they will still donate a lot of money. 
Contradiction: People watch an event.