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

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

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