<human>: Q: How much money has the sale of Federal Duck Stamps generated since 1934?
 A: Since 1934, the sale of Federal Duck Stamps has generated $670 million, and helped to purchase or lease 5,200,000 acres (8,100 sq mi; 21,000 km2) of habitat.
 Does the answer correctly answer the question

OPTIONS:
- yes
- no
<bot>: yes