- %token MAIN MATCH MEET NOT OF OR PAT PROJ PROP SELECT SOURCE STAT SUB
- %token SUP SUPER THEN TRUE UNION WHERE XOR
- %nonassoc IN SUP INF ELSE LOG STAT KEEP
+ %token MAIN MATCH MEET NOT OF OR PAT PROJ PROP SELECT SEQ SOURCE STAT
+ %token SUB SUP SUPER THEN TRUE UNION WHERE XOR
+ %nonassoc SOURCE
+ %right IN SEQ
+ %nonassoc SUP INF ELSE LOG STAT KEEP