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

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

*GRAMMAR*
gazzer -> YELLOW 
 wif -> GREEN 
 blicket -> RED 
 zup -> PURPLE 
 x1 lug x2 -> [x1] [x1] [x2] [x1] [x2] 
 x1 dax -> [x1] [x1] 
 x1 tufa u1 -> [x1] [u1] 
 u1 x1 -> [u1] [x1] 
 