SCHEMA:
CREATE TABLE table_name_23 (started VARCHAR, end_source VARCHAR, country VARCHAR, loan_club VARCHAR)
USER:
When was the loan started when the coutry is eng, the loan club is sunderland and the end source is south wales echo?

QUERY:
SELECT started FROM table_name_23 WHERE country = "eng" AND loan_club = "sunderland" AND end_source = "south wales echo"