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

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

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