CREATE TABLE table_48423 ("Season" TEXT, "Skip" TEXT, "Third" TEXT, "Second" TEXT, "Lead" TEXT, "Alternate" TEXT, "Events" TEXT)

What was the lead with an alternate of li dongyan?
SELECT "Lead" FROM table_48423 WHERE "Alternate" = 'li dongyan'
SELECT "Lead" FROM "table_48423" WHERE "Alternate" = 'li dongyan'