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

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

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