question: Why is peering used ?
answer: data that would otherwise have passed through a third upstream ISP , incurring charges from the upstream ISP
turker_answer: peering used because data that would otherwise have passed through a third upstream ISP , incurring charges from the upstream ISP
rule-based: Is Why is because of data that would otherwise have passed through a third upstream ISP , incurring charges from the upstream ISP peering used .