Table: episode_info_8
Columns: no_in_series
no_in_season
title
directed_by
written_by
original_air_date
production_code

Question: Who directed the title "the razor's edge"?
SQL: SELECT "directed_by" FROM episode_info_8 WHERE "title" = '"The Razor''s Edge"'

Question: Who directed what was written by Michael G. Moye & Ron Leavitt & J. Stanford Parker?
SQL: SELECT "directed_by" FROM episode_info_8 WHERE "written_by" = 'Michael G. Moye & Ron Leavitt & J. Stanford Parker'