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

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

*GRAMMAR*
blicket -> PINK 
 dax -> YELLOW 
 gazzer -> RED 
 wif -> GREEN 
 u1 zup -> [u1] [u1] 
 x1 fep x2 -> [x2] [x1] 
 x1 kiki u1 -> [u1] [x1] 
 u1 x1 -> [u1] [x1] 
 