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

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

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