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

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

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