tests/data/spec-02-03.data - third_party/pyyaml - Git at Google

 american:
   - Boston Red Sox
   - Detroit Tigers
   - New York Yankees
 national:
   - New York Mets
   - Chicago Cubs
   - Atlanta Braves
	american:
	- Boston Red Sox
	- Detroit Tigers
	- New York Yankees
	national:
	- New York Mets
	- Chicago Cubs
	- Atlanta Braves