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

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

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