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

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

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