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

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

*GRAMMAR*
lug -> PURPLE 
 zup -> YELLOW 
 wif -> RED 
 tufa -> BLUE 
 u1 kiki -> [u1] [u1] [u1] 
 u1 dax u2 -> [u1] [u2] 
 u1 fep -> [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 