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

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

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