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

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

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