*SUPPORT*
IN: kiki blicket kiki OUT: BLUE BLUE BLUE
IN: tufa OUT: RED
IN: fep OUT: YELLOW
IN: fep blicket tufa OUT: RED YELLOW RED
IN: tufa blicket tufa OUT: RED RED RED
IN: wif blicket kiki OUT: BLUE GREEN BLUE
IN: fep blicket fep OUT: YELLOW YELLOW YELLOW
IN: wif blicket wif OUT: GREEN GREEN GREEN
IN: wif zup wif blicket fep OUT: GREEN YELLOW GREEN YELLOW
IN: wif lug wif lug kiki blicket wif OUT: GREEN GREEN GREEN BLUE GREEN
IN: kiki kiki blicket fep zup kiki OUT: BLUE YELLOW BLUE YELLOW BLUE
IN: wif OUT: GREEN
IN: fep wif tufa lug fep kiki blicket tufa OUT: YELLOW GREEN RED YELLOW RED BLUE RED
IN: fep fep OUT: YELLOW YELLOW

*QUERY*
IN: wif fep OUT: GREEN YELLOW
IN: tufa blicket kiki OUT: BLUE RED BLUE
IN: fep fep blicket tufa OUT: YELLOW RED YELLOW RED
IN: fep tufa OUT: YELLOW RED
IN: kiki fep OUT: BLUE YELLOW
IN: kiki fep blicket kiki zup tufa blicket kiki OUT: BLUE BLUE YELLOW BLUE BLUE RED BLUE
IN: kiki blicket tufa OUT: RED BLUE RED
IN: tufa fep blicket fep zup tufa blicket tufa OUT: RED YELLOW YELLOW YELLOW RED RED RED
IN: tufa blicket wif OUT: GREEN RED GREEN
IN: fep zup tufa OUT: YELLOW RED

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