Assertion: outfielder's position | /r/HasProperty | first base
Facets:
Source sentences:
text: The infield is composed of four positions: first base (1B), second base (2B), third base (3B) and shortstop (SS).
text: Well, since both Brett Gardner and Jacoby Ellsbury are left-handed, the only other position which they should play, if any at all, would be first base.