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

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

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