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

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

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