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

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

*GRAMMAR*
dax -> YELLOW 
 zup -> BLUE 
 fep -> GREEN 
 wif -> PINK 
 u1 lug u2 -> [u1] [u2] [u2] 
 x1 tufa x2 -> [x2] [x1] 
 x1 gazzer -> [x1] [x1] [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 