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

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

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