CREATE TABLE table_14629 ("Name" TEXT, "Country" TEXT, "Type" TEXT, "Moving from" TEXT, "Transfer window" TEXT, "Ends" FLOAT, "Transfer fee" TEXT, "Source" TEXT)

What is the type of the Leeds United source, winter transfer window and moving from Northampton town?
SELECT "Type" FROM table_14629 WHERE "Source" = 'leeds united' AND "Transfer window" = 'winter' AND "Moving from" = 'northampton town'
SELECT "Type" FROM "table_14629" WHERE "Moving from" = 'northampton town' AND "Source" = 'leeds united' AND "Transfer window" = 'winter'