Simplify the following text for a Grade 11 native English-speaking person.
Original: While certainly affiliated with the `` House of Set , '' the Nephthys temple at Sepermeru and its apportioned lands ( several acres ) clearly were under administration distinct from the Set institution .
Simplified: While certainly affiliated with the `` House of Set , '' the Nephthys temple at Sepermeru and its apportioned lands ( several acres ) clearly were under administration distinct from the Set institution ( cf . ` Land Tenure in the Ramesside Period ' by S. Katary , 1989 ) .