How to check relationship field value is changing in logichooks

Hi All,

For the normal fields it is possible to know that value is changing

if(isset($arguments['dataChanges']['<your_field>'])) {
         $GLOBALS['log']->fatal("prev_sales_consultant_c_CHANGING");
}

But how to check relationship field value is changing for example the Account relationship field on Contact record view.

Any help will be highly appreciable

Regards