question: Who visited the Vatican in May of 1973 in an effort to negotiate Orthodox and Catholic relations ?
answer: Coptic Patriarch Shenouda III
turker_answer: Coptic Patriarch Shenouda III visited the Vatican in May of 1973 in an effort to negotiate Orthodox and Catholic relations .
rule-based: Coptic Patriarch Shenouda III visited the Vatican in May of 1973 in an effort to negotiate Orthodox and Catholic relations .