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

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

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