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

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

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