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| type_of_member_end_2            | upper_of_member_end_2 | name_of_member_end_1   | type_of_member_end_1   | upper_of_member_end_1 | description                                                                                                                                                            | proteus_association_type_of_member_end_1 | proteus_association_type_of_member_end_2 |
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| "ActuatingFunction"             | 1                     | "ActuatingLocation"    | "PipingNetworkSegment" | 1                     | "The actuating location of the <owner>."                                                                                                                               | "is located in"                          | "is the location of"                     |
| "HeatExchanger"                 | 1                     | "Agitator"             | "Agitator"             | 1                     | "The \\labeledref[class:]{Agitator} of the <owner>, if applicable."                                                                                                    | "is the location of"                     | "is located in"                          |
| "InlinePrimaryElementReference" | 1                     | "InlinePrimaryElement" | "InlinePrimaryElement" | 1                     | "The \\labeledref[class:]{InlinePrimaryElement} referenced by the <owner>."                                                                                            | "refers to"                              | "is referenced by"                       |
| "PipingConnection"              | 1                     | "SourceItem"           | "PipingSourceItem"     | 1                     | "The \\labeledref[class:]{PipingSourceItem} at which the <owner> starts."                                                                                              |                                          |                                          |
| "PipingConnection"              | 1                     | "SourceNode"           | "PipingNode"           | 1                     | "The \\labeledref[class:]{PipingNode} at which the <owner> starts. The \\name{SourceNode} must belong to the \\labeledref[declaration:PipingConnection:]{SourceItem}." |                                          |                                          |
| "PipingConnection"              | 1                     | "TargetItem"           | "PipingTargetItem"     | 1                     | "The \\labeledref[class:]{PipingTargetItem} at which the <owner> starts."                                                                                              |                                          |                                          |
| "PipingConnection"              | 1                     | "TargetNode"           | "PipingNode"           | 1                     | "The \\labeledref[class:]{PipingNode} at which the <owner> ends. The \\name{TargetNode} must belong to the \\labeledref[declaration:PipingConnection:]{TargetItem}."   |                                          |                                          |
| "PipingNetworkSegment"          | 1                     | "SourceItem"           | "PipingSourceItem"     | 1                     | "The item at which the \\name{PipingNetworkSegment} starts."                                                                                                           |                                          |                                          |
| "PipingNetworkSegment"          | 1                     | "SourceNode"           | "PipingNode"           | 1                     | "The \\name{Node} at which the \\name{PipingNetworkSegment} starts."                                                                                                   |                                          |                                          |
| "PipingNetworkSegment"          | 1                     | "TargetItem"           | "PipingTargetItem"     | 1                     | "The item at which the \\name{PipingNetworkSegment} ends."                                                                                                             |                                          |                                          |
| "PipingNetworkSegment"          | 1                     | "TargetNode"           | "PipingNode"           | 1                     | "The \\name{Node} at which the \\name{PipingNetworkSegment} ends."                                                                                                     |                                          |                                          |
| "ShutOffValveReference"         | 1                     | "Valve"                | "ShutOffValve"         | 1                     | "The actual valve referenced by the <owner>."                                                                                                                          | "refers to"                              | "is referenced by"                       |
| "Vessel"                        | 1                     | "Agitator"             | "Agitator"             | 1                     | "The \\labeledref[class:]{Agitator} of the <owner>, if applicable."                                                                                                    | "is the location of"                     | "is located in"                          |
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