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

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

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