question: Where was the location of the Battle of Gravelotte ?
answer: 6 miles ( 9.7 km ) west of Metz
turker_answer: The location of the Battle of Gravelotte was 6 miles ( 9.7 km ) west of Metz .
rule-based: The location of the Battle of Gravelotte was in 6 miles ( 9.7 km ) west of Metz .