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

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

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