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

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

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