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

*QUERY*
IN: fep fep kiki tufa OUT: PURPLE PURPLE GREEN GREEN GREEN GREEN
IN: zup wif lug OUT: BLUE RED BLUE
IN: fep wif kiki OUT: GREEN PURPLE GREEN
IN: kiki wif lug OUT: BLUE GREEN BLUE
IN: fep tufa OUT: PURPLE PURPLE PURPLE PURPLE
IN: kiki wif zup OUT: RED GREEN RED
IN: kiki wif kiki OUT: GREEN GREEN GREEN
IN: lug OUT: BLUE
IN: lug kiki gazzer OUT: BLUE GREEN BLUE GREEN BLUE GREEN BLUE GREEN
IN: lug wif fep OUT: PURPLE BLUE PURPLE

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