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long:timber,
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skeletal:structure,
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metallic:part,
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carved:object,
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underwater:feature,
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external:surface,
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large:timber,
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ferrous:object,
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primary:structure,
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essential:feature,
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underwater:surface,
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extra:hardware,
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underwater:appendage,
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structural:part,
-
underwater:part,
Category Nuances for keel:
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carved,
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underwater,
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external,
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metallic,
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essential,
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ferrous,
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skeletal,
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long,
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structural,
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large,
-
extra,
-
primary,
Simple Categories for keel: