Question: What is the elevation and height for Halfbeak?
SQL: SELECT "Elevation + Height" FROM "2-16639136-1" WHERE "Name" = 'Halfbeak';

Question: What is the purpose of Long Shot?
SQL: SELECT "Purpose" FROM "2-16639136-1" WHERE "Name" = 'Long Shot';

Question: What is the yield in NTS Area U2r when the purpose is Weapons development?
SQL: SELECT "Yield" FROM "2-16639136-1" WHERE "Purpose" = 'Weapons development' AND "Location" = 'NTS Area U2r';