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

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

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