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

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

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