Approving implying relationships generates syntax error

Assume:

1. Roommate relationship implies Friend relationship.
2. No prior relationships/requests exist between Ann and Bob.
3. Ann sends Bob a Roommate relationship request. This will generate two separate requests: a Roommate request and a Friends request.

If Bob approves the Roommate request, the Friend request should also be approved. However, when the Implications module tries to approve the Friend request, it gets a syntax error:

Fatal error: Call to undefined function user_relationships_relationship_load() in /var/www/svn/dev/sites/all/modules/user_relationships/plugins/user_relationship_implications/user_relationship_implications.module on line 188

I've attached a patch.