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

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

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