#MT: 6 NAME: MSG: PARENT NAME: FIELDS: { to: from: cc: } NAME: meeting PARENT NAME: MSG: FIELDS: { to: from: cc: place: time: } NAME: lecture PARENT NAME: MSG:/meeting FIELDS: { to: from: cc: place: time: topic: speaker: } NAME: RSVP PARENT NAME: MSG:/meeting/lecture FIELDS: { to: from: cc: place: time: topic: speaker: RSVP_by: } NAME: phone PARENT NAME: MSG: FIELDS: { to: from: cc: Caller: when: about: return_call?: } NAME: SYSTEM PARENT NAME: MSG: FIELDS: { to: from: cc: concerning_machine: whats_going_to_happen: from: until: }