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

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

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