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

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

*GRAMMAR*
zup -> GREEN 
 lug -> YELLOW 
 tufa -> PURPLE 
 gazzer -> RED 
 x1 dax u1 -> [u1] [x1] 
 x1 wif x2 -> [x1] [x2] 
 u1 kiki u2 -> [u1] [u2] [u1] 
 u1 x1 -> [u1] [x1] 
 