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

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

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