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

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

*GRAMMAR*
zup -> GREEN 
 fep -> BLUE 
 wif -> PINK 
 dax -> PURPLE 
 u1 tufa u2 -> [u1] [u1] [u2] [u2] 
 u1 kiki -> [u1] [u1] [u1] 
 x1 lug x2 -> [x2] [x1] 
 u1 x1 -> [u1] [x1] 
 