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

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

*GRAMMAR*
lug -> RED 
 zup -> GREEN 
 kiki -> PURPLE 
 tufa -> YELLOW 
 u1 fep x1 -> [x1] [u1] 
 x1 wif x2 -> [x1] [x2] 
 u1 dax -> [u1] [u1] [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 