CREATE TABLE table_66290 ("Proto-Germanic" CLOB, "West Germanic" CLOB, "Old English" CLOB, "German" CLOB, "Dutch" CLOB)

What's the West Germanic when the German is /s/ or /ts/?
SELECT "West Germanic" FROM table_66290 WHERE "German" = '/s/ or /ts/'
SELECT "West Germanic" FROM "table_66290" WHERE "German" = '/s/ or /ts/'