"Has improper value for" is a predefined property to track input errors for irregular value annotations that was likely caused by type or allowed value restrictions.
en:The whole name of the agent as shown e.g. for selection in an user interface. For persons this entry will be generated as follows: LastName, FirstNames, AgentTitle +
The whole name of the agent as shown e.g. for selection in an user interface. For persons this entry will be generated as follows: LastName, FirstNames, AgentTitle +