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

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

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