Property talk:P4441
Documentation
hydraulic head
hydraulic head of a dam or hydroelectric power station
hydraulic head of a dam or hydroelectric power station
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Type “hydroelectric power station (Q15911738), dam (Q12323)”: item must contain property “instance of (P31)” with classes “hydroelectric power station (Q15911738), dam (Q12323)” or their subclasses (defined using subclass of (P279)). (Help)
Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303). List of violations of this constraint: Database reports/Constraint violations/P4441#Type Q15911738, Q12323, SPARQL