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

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

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