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

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

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