*SUPPORT*
IN: zup OUT: BLUE
IN: wif blicket zup OUT: BLUE RED
IN: gazzer gazzer gazzer zup kiki OUT: PURPLE PURPLE PURPLE BLUE PURPLE PURPLE PURPLE BLUE
IN: zup blicket zup OUT: BLUE BLUE
IN: wif tufa lug kiki OUT: RED GREEN RED GREEN RED GREEN RED GREEN
IN: zup wif lug tufa lug OUT: BLUE RED GREEN GREEN GREEN GREEN
IN: zup lug tufa zup OUT: BLUE GREEN BLUE GREEN BLUE
IN: gazzer zup OUT: PURPLE BLUE
IN: zup tufa gazzer OUT: BLUE PURPLE BLUE PURPLE
IN: wif tufa gazzer kiki OUT: RED PURPLE RED PURPLE RED PURPLE RED PURPLE
IN: wif blicket lug OUT: GREEN RED
IN: zup blicket wif OUT: RED BLUE
IN: zup tufa zup OUT: BLUE BLUE BLUE BLUE
IN: wif tufa zup OUT: RED BLUE RED BLUE

*QUERY*
IN: wif blicket wif OUT: RED RED
IN: wif zup tufa gazzer OUT: RED BLUE PURPLE BLUE PURPLE
IN: lug zup tufa lug OUT: GREEN BLUE GREEN BLUE GREEN
IN: lug blicket gazzer OUT: PURPLE GREEN
IN: lug blicket lug OUT: GREEN GREEN
IN: wif OUT: RED
IN: lug OUT: GREEN
IN: gazzer OUT: PURPLE
IN: gazzer tufa gazzer OUT: PURPLE PURPLE PURPLE PURPLE
IN: wif wif blicket lug kiki OUT: RED GREEN RED RED GREEN RED

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