what is the {point in time} for {Jacqueline Wilson} has {award received} as {Guardian Children's Fiction Prize} ?
When was it that the Guardian Children's Fiction Prize was given to Jacqueline Wilson?
In what year did Jacqueline Wilson receive the Guardian Children's Fiction Prize?
SELECT ?b WHERE { resource:Jacqueline_Wilson property:award_received ?a . ?a property:point_in_time ?b . ?a property:award_received resource:Guardian_Children's_Fiction_Prize }
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} 

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