question: What is built in Avalon
answer: the oldest above-ground Christian church in the World '' situated `` in the mystical land of Avalon
turker_answer: The oldest above-ground Christian church in the World `` situated '' in the mystical land of Avalon , is built in Avalon .
rule-based: The oldest above-ground Christian church in the World '' situated `` in the mystical land of Avalon is built in Avalon