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

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

*GRAMMAR*
zup -> BLUE 
 dax -> GREEN 
 tufa -> PINK 
 wif -> YELLOW 
 x1 gazzer x2 -> [x2] [x1] [x2] 
 x1 lug -> [x1] [x1] 
 x1 fep -> [x1] [x1] [x1] [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 