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

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

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