Anchor: Following the death of the Prophet Mohammed in 632, Arab armies, united under Islam, poured out of their homeland, and soon took Egypt, Syria, and Palestine from the Byzantines; Constantinople was besieged from 674 to 678, but survived because of its defences.
Entailed: Constantinople survived four years of attack from Arab armies that had conquered Egypt, Syria and Palestine.
Contradiction: Constantinople fell to the Arab armies after a one-month siege.
Contradiction: They never test.
Contradiction: These women are ready to compete in extreme roller derby.
Contradiction: Dogs joust.
Contradiction: We still have the Vietnam mentality where we think we can just get in and get out of wars.