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

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

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