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

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

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