Question: Who is the operator when Roe was the bodybuilder?
SQL: SELECT "Operator" FROM "1-28035004-1" WHERE "Bodybuilder" = 'Roe';

Question: What is the variant when Alexander was the bodybuilder?
SQL: SELECT "Variant" FROM "1-28035004-1" WHERE "Bodybuilder" = 'Alexander';

Question: Who was the bodybuilder when Coventry was operating?
SQL: SELECT "Bodybuilder" FROM "1-28035004-1" WHERE "Operator" = 'Coventry';

Question: How many different variants are there for Northern Counties bodybuilder?
SQL: SELECT COUNT("Variant") FROM "1-28035004-1" WHERE "Bodybuilder" = 'Northern Counties';

Question: Who is the operator when Willowbrook was the bodybuilder?
SQL: SELECT "Operator" FROM "1-28035004-1" WHERE "Bodybuilder" = 'Willowbrook';