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This category has the following 5 subcategories, out of 5 total.
8:
158:Transport buildings and structures in Europe
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32:
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84:Natural gas pipelines in Europe
36:Pipelines in Europe by country
1:
60:Pipelines in the Soviet Union
128:Proposed pipelines in Europe
174:
108:Oil pipelines in Europe
153:Pipelines by continent
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17:Subcategories
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147:Categories
88:(1 C, 2 P)
132:(11 P)
40:(43 C)
112:(2 C)
64:(2 C)
149::
130:
110:
86:
62:
38:
121:P
97:O
73:N
49:+
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