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

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

*GRAMMAR*
wif -> PURPLE 
 fep -> BLUE 
 tufa -> YELLOW 
 dax -> GREEN 
 x1 zup x2 -> [x2] [x1] 
 u1 kiki u2 -> [u1] [u2] 
 x1 lug x2 -> [x2] [x2] [x1] 
 u1 x1 -> [u1] [x1] 
 