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

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

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