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

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

*GRAMMAR*
fep -> PURPLE 
 zup -> RED 
 lug -> PINK 
 dax -> GREEN 
 u1 wif u2 -> [u2] [u1] 
 x1 kiki u1 -> [x1] [u1] 
 x1 tufa -> [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 