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

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

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