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

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

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