CREATE TABLE table_25293 ("Station" CLOB, "Extension" CLOB, "City/Neighborhood" CLOB, "Projected opening" FLOAT, "Transit Connections" CLOB, "Park and ride?" CLOB)

Name the extension for university of washington
SELECT "Extension" FROM table_25293 WHERE "City/Neighborhood" = 'University of Washington'
SELECT "Extension" FROM "table_25293" WHERE "City/Neighborhood" = 'University of Washington'