This is the 18490th most frequent Korean word.
시설이어야
"시설이어야" means "must be a facility" or "should be a facility."
The word '시설이어야' is used to convey a requirement or specification for the facility being mentioned.
이 도서관은 학습시설이어야 합니다.
This library must be a learning facility.
Here, '시설이어야' is used to specify a necessary characteristic of the playground.
운동장은 체육시설이어야 하는 이유를 설명해주세요.
Please explain the reasons why the playground must be a sports facility.
In this usage, '시설이어야' expresses opinion about the intended purpose of the cafe being discussed.