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

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

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