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

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

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