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

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

*GRAMMAR*
zup -> PINK 
 dax -> BLUE 
 blicket -> RED 
 wif -> GREEN 
 x1 tufa x2 -> [x2] [x2] [x1] [x2] [x2] [x1] 
 x1 kiki u1 -> [x1] [u1] [x1] [u1] 
 u1 fep u2 -> [u1] [u2] [u2] 
 u1 x1 -> [u1] [x1] 
 