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

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

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