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

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

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