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

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

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