Ches-Mont League
{'<entity_0>': 'Ches-Mont League', '<entity_1>': 'sports league', '<entity_2>': '1950'}
[['Ches-Mont League', 'instance of', 'sports league'], ['Ches-Mont League', 'inception', '1950'], ['Ches-Mont League', 'start time', '1950']]
The <entity_0> is a high school <entity_1> primarily located in Chester County, Pennsylvania in the suburbs of Philadelphia. The <entity_0> started in <entity_2> as a spin-off from the huge Suburban League, which had been home for the larger schools in Chester County for some time. This reduced the <entity_0>, which from 1978 through 1982 was the largest primarily public-school <entity_1> in the southeastern Pennsylvania suburbs of Philadelphia, to only four schools - Coatesville, Downingtown, West Chester East, and West Chester Henderson.
['sports league']