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

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

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