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

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

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