Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_24143253_4 (cause_of_death VARCHAR, length_of_marriage VARCHAR)
### Question:
What was the cause of death in the marriage that lasted 28 years? 
### Answer:
SELECT cause_of_death FROM table_24143253_4 WHERE length_of_marriage = "28 years"