The annual celebration commemorates the Star-Spangled Banner and its creator Mary Pickersgill.

Entity and relation annotations:
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type: entity
value: text: the Star-Spangled Banner
labels: <Work_of_art>
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type: entity
value: text: Mary Pickersgill
labels: <Person>
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type: entity
value: text: creator
labels: <Title>
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labels: Person:creates:Work_of_art
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labels: Person:holds_title:Title
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