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

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

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