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

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

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