Bittrex API market history — interpreting OrderType

The Bittrex API has a request to get the market history:


https://bittrex.com/api/v1.1/public/getmarkethistory?market=BTC-DOGE


which gives a response containing the following fields:

• “Id”
• “TimeStamp”
• “Quantity”
• “Price”
• “Total”
• “FillType”
• “OrderType”

"OrderType" can be one of "BUY" or "SELL". What does this refer to?

Let’s assume it has a value of “SELL”. Does this mean:

1. The person who initially placed the order was selling (Seller is Maker).
2. The person who closed the order was selling (Seller is Taker)