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

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

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