選抜せんばつ高等こうとう学校がっこう野球やきゅう大会たいかい
sembatsukōtōgakkōya kyūtaikaide

Noun
Da Copula

て-form: Used to connect clauses, make requests, or chain actions of 選抜高等学校野球大会

1. Selecting high school baseball tournament; In the selected high school baseball tournament

Te-Form