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

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

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