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

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

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