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

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

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