DUP_CFA, SOURCE_ID_CFA, STORE_CFA, # Mark this as the current source
DUP_CFA, QUERY_FILE_CFA, # Read line from file
INTERPRET_CFA, # Interpret line
DUP_CFA, SOURCE_ID_CFA, STORE_CFA, # Mark this as the current source
DUP_CFA, QUERY_FILE_CFA, # Read line from file
INTERPRET_CFA, # Interpret line