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

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

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