*SUPPORT*
IN: zup kiki fep wif OUT: RED PINK BLUE
IN: blicket OUT: GREEN
IN: zup tufa OUT: RED RED
IN: zup fep kiki OUT: BLUE RED
IN: zup zup fep kiki OUT: RED BLUE RED
IN: zup fep wif OUT: PINK RED
IN: kiki zup dax OUT: BLUE RED RED
IN: blicket wif OUT: GREEN PINK
IN: wif fep blicket OUT: GREEN PINK
IN: wif fep wif OUT: PINK PINK
IN: wif OUT: PINK
IN: kiki OUT: BLUE
IN: blicket dax OUT: GREEN GREEN
IN: wif kiki OUT: PINK BLUE

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

*GRAMMAR*
kiki -> BLUE 
 blicket -> GREEN 
 wif -> PINK 
 zup -> RED 
 u1 fep u2 -> [u2] [u1] 
 u1 tufa -> [u1] [u1] 
 u1 dax -> [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 