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

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

*GRAMMAR*
tufa -> BLUE 
 zup -> PINK 
 wif -> YELLOW 
 kiki -> RED 
 x1 dax x2 -> [x2] [x1] 
 x1 lug u1 -> [x1] [u1] 
 x1 fep -> [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 