Complex sentence: Common Application members are free to require an additional supplement form of applicants to elicit questions not asked on the Common Application-typically questions that don't have common answers "for all institutions such as" Did your parent attend our college ?
Split into simpler sentences: Common Application members are free to require an additional supplement form of applicants to elicit questions not asked on the Common Application. These are typically questions that don't have common answers "for all institutions, such as" Did your parent attend our college?