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

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

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