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

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

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