Premise: A series of caravanserais (rooming houses for the camel caravans that were the main method of transporting goods), or khans as they were known in Egypt during the Fatimid era, were built here by Emir El-Khalili, giving the market its name.

Hypothesis: The Khans of Egypt during the Fatimid era, were also known as caravanserais.
Relation: entailment