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Orbiter Processing Facility
governmental | nasa
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Onshore Processing Facility
miscellaneous | unclassified
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Official Personnel Folders
miscellaneous | unclassified
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Organizational Process Focus
miscellaneous | unclassified
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Official Personnel Folder
governmental | fda
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miscellaneous | unclassified
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miscellaneous | unclassified
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miscellaneous | unclassified
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Optoelectronic Processing Facility
miscellaneous | unclassified
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miscellaneous | unclassified
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Optimization Problem Format
miscellaneous | unclassified
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governmental | military
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Oregon Psychoanalytic Foundation
community | non-profit organizations
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Official Personnel Folder
miscellaneous | usps
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Official Personnel Folder
academic & science | ocean science
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governmental | us government
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Opalocka Airport, Miami, Florida
regional | airport codes
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governmental | military
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miscellaneous | unclassified
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business | general
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academic & science | electronics
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miscellaneous | unclassified
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miscellaneous | unclassified
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Overseas Pakistanis Foundation
miscellaneous | foundations
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Orangutan Protection Foundation
miscellaneous | foundations
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Orthodox Peace Fellowship
community | religion
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Orchestra Parents And Friends
miscellaneous | unclassified
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governmental | us government
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miscellaneous | foundations