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

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

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