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

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

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