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

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

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