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

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

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