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

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

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