Class: protostellarDisk
http://www.astro.umd.edu/~eshaya/astro-ont/owl/astronomy.owl#protostellarDisk
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matterObject
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astroMatterObject
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planetarySystemPart
- protostellarDisk
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planetarySystemPart
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astroMatterObject
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astroObject
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astroMatterObject
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planetarySystemPart
- protostellarDisk
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planetarySystemPart
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astroMatterObject