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

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

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