Your '98 'may' be different than my 2018 but one should be a tank vent, one tank overflow, and the circled one the supply line to the fuel rail. To empty my tank I just disconnect the supply line from the fuel rail, put the end of the line into an empty 5-gallon gas can, and jump the fuel pump relay terminals to pump the gas into the gas can. Note: it's possible that any debris in the tank could clog the fuel filter, so just taking the tank off and dumping it from the filler cap may be a better option.