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

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

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