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

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

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