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

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

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