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

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

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