CREATE TABLE church (name VARCHAR(255), church_id VARCHAR(255)); CREATE TABLE people (people_id VARCHAR(255), age VARCHAR(255)); CREATE TABLE wedding (male_id VARCHAR(255), female_id VARCHAR(255), church_id VARCHAR(255))
Show the church names for the weddings of all people older than 30.
    
SQL: SELECT T4.name FROM wedding AS T1 JOIN people AS T2 ON T1.male_id = T2.people_id JOIN people AS T3 ON T1.female_id = T3.people_id JOIN church AS T4 ON T4.church_id = T1.church_id WHERE T2.age > 30 OR T3.age > 30