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

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

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