You work for a large non-profit that raises money for awareness of and research to cure a very painful childhood disease. They have a database table with over 100,000 names, addresses, and basic demographic information about donors to their cause.

Match the following columns in the table based on sparsity.

Donor MaritalStatus Low Sparsity Donor_BirthDate High Sparsity Donor_Gender Donor_NumberOfChildren Donor_ZipCode Donor CellPhoneNumber Donor_ LastName