A multi-tier application has Oracle at the first level and WebSphere at the second level, which depends on the Oracle application. The Oracle and the WebSphere service groups are configured in two separate clusters. The administrator wants the following fault behavior:

when the Oracle service group faults, the WebSphere service group should stay online.

when the Oracle service group comes back online, the WebSphere service group should be taken offline and brought back online

Which type of dependency must the administrator configure to acquire the desired behavior?