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 party (party_name VARCHAR, party_id VARCHAR); CREATE TABLE Member (party_name VARCHAR, party_id VARCHAR)
### Question:
Show names of parties that does not have any members.
### Answer:
SELECT party_name FROM party WHERE NOT party_id IN (SELECT party_id FROM Member)