Unclassified 2a. SECURITY CLASSIFICATION AUTHORITY 3. DISTRIBUTION /AVAILABILITY OF REPORT Approved for ,.ublic release; distribution 2b. DECLASSIFICATION/ DOWNGRADING SCHEDULE is unlimited. 4. PERFORMING ORGANIZATION REPORT NUMBER(S) S. MONITORING ORGANIZATION REPORT NUMBER(S) MIT/LCS/TM-429 N00014-83-K-0125 6a. NAME OF PERFORMING ORGANIZATION 6b. OFFICE SYMBOL 7a. NAME OF MONITORING ORGANIZATION MIT Lab for Computer Science (If applicable) Office of Naval Research/Dept. of Navy 6c. ADDRESS (City, State. and ZIPCode) 7b. ADDRESS(Oty, State, and ZIPCode)