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

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

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