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

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

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