Which of the A. Dyck has J. Thiessen of Du?
CREATE TABLE table_name_68 (a_dyck VARCHAR, j_thiessen VARCHAR)
SELECT a_dyck FROM table_name_68 WHERE j_thiessen = "du"
### Context: CREATE TABLE table_name_68 (a_dyck VARCHAR, j_thiessen VARCHAR) ### Question: Which of the A. Dyck has J. Thiessen of Du? ### Answer: SELECT a_dyck FROM table_name_68 WHERE j_thiessen = "du"