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

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

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