wabort2> ;
--- Output: O
wabort2> ;
--- Output: W
wabort2> ;
--- Output: O Z
wabort2> ;
--- Output: W
wabort2> ;
--- Output: O Z
wabort2> ;
--- Output: W
wabort2> S;
--- Output: O F Z
wabort2> ;
--- Output: