(xor
 (seq
  (seq
   (call %init_peer_id% ("getDataSrv" "relay") [] relay)
   (call %init_peer_id% ("test-service-id" "str") [] res)
  )
  (call %init_peer_id% ("callbackSrv" "response") [res])
 )
 (call %init_peer_id% ("errorHandlingSrv" "error") [%last_error%])
)