*SUPPORT*
IN: wif tufa zup OUT: GREEN RED YELLOW
IN: zup tufa tufa blicket OUT: YELLOW RED RED RED
IN: gazzer gazzer OUT: BLUE BLUE
IN: tufa OUT: RED
IN: zup blicket fep wif OUT: YELLOW YELLOW GREEN
IN: gazzer blicket fep gazzer OUT: BLUE BLUE BLUE
IN: gazzer tufa blicket lug OUT: BLUE RED RED BLUE RED RED
IN: zup tufa blicket fep wif lug OUT: YELLOW RED RED GREEN YELLOW RED RED GREEN
IN: zup OUT: YELLOW
IN: wif blicket OUT: GREEN GREEN
IN: tufa fep zup OUT: RED YELLOW
IN: zup fep zup OUT: YELLOW YELLOW
IN: wif blicket fep zup OUT: GREEN GREEN YELLOW
IN: gazzer zup OUT: BLUE YELLOW

*QUERY*
IN: wif fep zup lug OUT: GREEN YELLOW GREEN YELLOW
IN: tufa blicket fep wif fep wif OUT: RED RED GREEN GREEN
IN: tufa zup blicket fep tufa fep tufa OUT: RED YELLOW YELLOW RED RED
IN: gazzer fep gazzer OUT: BLUE BLUE
IN: tufa lug OUT: RED RED
IN: wif fep tufa OUT: GREEN RED
IN: tufa blicket OUT: RED RED
IN: zup wif blicket lug fep wif OUT: YELLOW GREEN GREEN YELLOW GREEN GREEN GREEN
IN: gazzer OUT: BLUE
IN: wif OUT: GREEN

*GRAMMAR*
wif -> GREEN 
 tufa -> RED 
 gazzer -> BLUE 
 zup -> YELLOW 
 u1 blicket -> [u1] [u1] 
 x1 fep u1 -> [x1] [u1] 
 x1 lug -> [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 