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

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

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