*SUPPORT*
IN: wif gazzer OUT: YELLOW YELLOW YELLOW
IN: wif OUT: YELLOW
IN: dax zup lug OUT: RED GREEN
IN: fep lug kiki OUT: PURPLE RED PURPLE RED
IN: fep zup wif kiki OUT: YELLOW PURPLE YELLOW PURPLE
IN: wif lug gazzer OUT: YELLOW RED RED RED
IN: dax zup wif OUT: YELLOW GREEN
IN: dax OUT: GREEN
IN: fep OUT: PURPLE
IN: fep zup wif OUT: YELLOW PURPLE
IN: fep gazzer kiki OUT: PURPLE PURPLE PURPLE PURPLE PURPLE PURPLE
IN: lug wif OUT: RED YELLOW
IN: fep zup dax OUT: GREEN PURPLE
IN: wif gazzer kiki OUT: YELLOW YELLOW YELLOW YELLOW YELLOW YELLOW

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

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