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

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

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