Table: widow_widower_info
Columns: name
deceased_spouse
cause_of_death
date_of_spouses_death
length_of_marriage
children_together
current_marital_status

Question: Who was the deceased spouse who was married for 4 years?
SQL: SELECT "deceased_spouse" FROM widow_widower_info WHERE "length_of_marriage" = '4 years'

Question: Who were the children of Benjamin Harrison?
SQL: SELECT "children_together" FROM widow_widower_info WHERE "name" = 'Benjamin Harrison'