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

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

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