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

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

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