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

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

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