{4xFuture, 0, 0, 6xUSDT} is a sell order of 4 Futures for 6 USDT Tokens.{0, 5xDAI, 10xOptions, 0} is a buy order of 10 Options for 5 DAI Tokens.{4xFuture, 6xUSDT, 10xOptions, 0} is a combined sell order for [10 Options - 4 Futures] spread with a price to pay of 6 USDT coins.{4xFutureA, 0, 8xFutureB, 0} is a buy order of 8 FutureB with paying of 4 FutureA{1xPortfolio, 0, 0, 1200xDAI} is a sell order of user Portfolio for 1200 DAI coins