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

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

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