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

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

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