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

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

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