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

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

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