CREATE TABLE table_72972 ("Segment description" CLOB, "Date opened" CLOB, "Line ( s ) " CLOB, "Endpoints" CLOB, "# of new stations" CLOB, "Length  ( miles ) " CLOB)

How many lines have the segment description of red line mos-2 west?
SELECT "Line(s)" FROM table_72972 WHERE "Segment description" = 'Red Line MOS-2 West'
SELECT "Line(s)" FROM "table_72972" WHERE "Segment description" = 'Red Line MOS-2 West'