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

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

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