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

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

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