Complex sentence: Dowie and Mirza Ghulam Ahmad engaged in a widely publicized prayer duel, each calling upon God to expose the other as a false prophet, whoever was found to be false would die before the truthful.
Split into simpler sentences: Dowie and Mirza Ghulam Ahmad engaged in a widely publicized prayer duel, each calling upon God to expose the other as a false prophet. Whoever was found to be false would die before the truthful.