The 3 way line (Germany, Turkey, Draw) means you lose your bet if you have Turkey or Germany and the game ends in a draw. Soccer bets are generally for 90 minutes + injury time only, so if the game goes to OT, OT doesn't count toward your bet. The exception is if you have "Germany to advance", which includes OT and PKs.
Selecting a team -.5 is the same as selecting them on the three way line though for some inexplicable reason the lines often differ.
There are also bets for Germany PK and Turkey PK, which is a 90 minute + injury time bet that pushes on a draw.
Hope that helps.