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

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

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