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

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

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