What query can be used to write page based EL expressions?

Summary:

We have two different navigations with same pages.

1. My Client group - Family and Emergency Contacts - Search a person - we have a list of dependents - when we click on a dependent's name, we get Demographic info.
2. Benefit Administration - Enrolments - Search a person - click on People to cover - we have a list of dependents - when we click on a dependent's name, we get Demographic info.

The requirement is when we open the dependent's info from My Client Group, the Demographic Info should not be visible, but the same should be visible when we reach the page from Benefit Administration.