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

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

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