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

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

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