(subclass Pipeline Transitway) | Transportation.kif 773-773 | Pipeline is a subclass of transitway |
(subclass SewageSystem Pipeline) | Transportation.kif 785-785 | Sewage system is a subclass of pipeline |
(subclass CrudeOilPipeline Pipeline) | Transportation.kif 797-797 | Crude oil pipeline is a subclass of pipeline |
(subclass NaturalGasPipeline Pipeline) | Transportation.kif 809-809 | Natural gas pipeline is a subclass of pipeline |
(subclass PetroleumProductPipeline Pipeline) | Transportation.kif 821-821 | Petroleum product pipeline is a subclass of pipeline |