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

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

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