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

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

*GRAMMAR*
fep -> BLUE 
 zup -> RED 
 lug -> YELLOW 
 gazzer -> GREEN 
 x1 wif -> [x1] [x1] [x1] 
 u1 tufa u2 -> [u1] [u2] [u1] 
 u1 blicket -> [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 