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

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

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