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_10710364_2 (sex_ratio__child_ INTEGER, work_participation___percentage_ VARCHAR)
### Question:
What is the lowest child sex ratio in groups where employment is 31.3%?
### Answer:
SELECT MIN(sex_ratio__child_) FROM table_10710364_2 WHERE work_participation___percentage_ = "31.3%"