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

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

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