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

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

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