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

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

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