how will it be classified if the buy or sell comes from a limit order, market order or stop loss order, if XYZ sold 50k at his ask price or at the bid price XYZ sold 50K consider a sell

If ABC brought that same 50k ask price or at the bid price whichever it may be, its a buy, someone is a seller someone is a buyer of the same equity that stock experienced both a buy and a sell that what any market is all about, don't get why the question was even asked, think this is such a basic known fact