/                                                     \
        |     +-----------+                    +-----------+    |
        |     |           |                    |           |    |
        |     |           |                    |           |    |
        |     | terminal  |                    | terminal  |    |
        |     |           |                    |           |    |
        |     |           |                    |           |    |
        |     +-----+-----+                    +-----+-----+    |
        |           |Trivial                         |          |
        |           |Responses                       |          |
        |           |                                |          |
        |     +-----+------+                    +-----------+   |
        |     |     |      |                    |     |     |   |
   UCLA {     |     |      |  Major Responses   |     |     |   } SRI ___
        |     |  +--+--+   |  +-+          +-+  |  +--+---+ |   |    /   |
        |     |  |DEL  |---+-=|I|----------|I|=-+--|OS|NLS| +---+---|    |
        |     |  |front|   |  +-+          +-+  |  +------+ |   |   |___/
        |     |  | end |   |                    |           |   |   |    |
        |     |  |prog.|   |                    |           |   |   |____|
        |     |  +-----+   |                    |           |   |
        |     |  | OS  |   |                    |           |   |
        |     |  +-----+   |                    |           |   |
        |     |            |                    |           |   |
        |     +------------+                    +-----------+   |
        |      HOST: UCLA                         HOST: SRI     |
         \                                                     /