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

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

*GRAMMAR*
fep -> YELLOW 
 dax -> GREEN 
 tufa -> RED 
 kiki -> PINK 
 x1 zup x2 -> [x1] [x1] [x2] [x2] [x2] 
 u1 wif u2 -> [u1] [u2] 
 x1 lug x2 -> [x2] [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 