Given the question: Information:  - Grödig is a market town of Salzburg-Umgebung District in the state of Salzburg in Austria.   - Thomas Günther Eder ( born December 25 , 1980 ) is an Austrian football player currently playing for SV Grödig .  - The Austrian Regional League West is a third-tier division of Austrian football introduced in the 1980-81 season as successor of the "Alpenliga". It covers the Austrian states of Salzburg, Tyrol (excepting East Tyrol) and Vorarlberg and is one of three leagues at this level.  - Sportverein Grödig is an Austrian association football club from Grödig. The team currently competes in the Austrian Regional League West, the 3rd tier of Austrian football.    After reading the paragraphs above, we are interested in knowing the entity with which 'thomas eder' exhibits the relationship of 'place of birth'. Find the answer from the choices below.  Choices: - of  - salzburg  - vorarlberg
The answer is:
salzburg