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

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

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