*SUPPORT*
IN: kiki zup dax wif lug wif OUT: RED GREEN GREEN GREEN PINK
IN: kiki kiki dax dax lug dax zup dax OUT: RED PINK PINK RED RED RED RED
IN: kiki lug wif OUT: GREEN PINK PINK
IN: dax OUT: RED
IN: dax lug tufa OUT: BLUE RED RED
IN: wif dax zup tufa zup dax lug wif OUT: GREEN RED RED BLUE GREEN RED
IN: wif OUT: GREEN
IN: tufa lug tufa OUT: BLUE BLUE BLUE
IN: kiki tufa lug kiki blicket wif OUT: PINK PINK BLUE BLUE GREEN
IN: tufa OUT: BLUE
IN: dax tufa OUT: RED BLUE
IN: tufa dax dax OUT: BLUE RED RED
IN: wif dax kiki lug tufa OUT: GREEN RED BLUE PINK PINK
IN: dax lug kiki OUT: PINK RED RED

*QUERY*
IN: kiki tufa lug dax OUT: PINK RED BLUE BLUE
IN: kiki OUT: PINK
IN: wif lug kiki OUT: PINK GREEN GREEN
IN: tufa tufa OUT: BLUE BLUE
IN: tufa lug wif OUT: GREEN BLUE BLUE
IN: tufa kiki OUT: BLUE PINK
IN: wif lug kiki blicket wif wif OUT: PINK GREEN GREEN GREEN GREEN
IN: tufa lug kiki OUT: PINK BLUE BLUE
IN: kiki lug kiki OUT: PINK PINK PINK
IN: dax lug kiki blicket kiki OUT: PINK RED RED PINK

*GRAMMAR*
wif -> GREEN 
 kiki -> PINK 
 dax -> RED 
 tufa -> BLUE 
 x1 blicket x2 -> [x1] [x2] 
 x1 zup x2 -> [x2] [x1] 
 u1 lug u2 -> [u2] [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 