The Snow Hill Billies played exclusively as members of the Coastal Plain League.

Entity and relation annotations:
id: 0
type: entity
value: text: The Snow Hill Billies
labels: <Organization>
id: 1
type: entity
value: text: the Coastal Plain League
labels: <Organization>
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type: entity
value: text: members
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labels: Organization:is_subordinate_to:Organization
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