what is the {point in time} for {Ethel Merman} has {nominated for} as {Tony Award for Best Actress in a Musical} ?
In which year was Ethel Merman nominated for the Tony Award for Best Actress in a Musical?
When was Ethel Merman nominated for the Tony Award for Best Actress in a Musical?
SELECT ?b WHERE { ?s property:nominated_for resource:Tony_Award_for_Best_Actress_in_a_Musical . ?s property:point_in_time ?b . resource:Ethel_Merman property:nominated_for ?s }
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} 

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