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

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

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