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

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

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