*SUPPORT*
IN: dax wif kiki OUT: BLUE GREEN BLUE BLUE
IN: lug lug wif dax fep gazzer tufa dax OUT: PURPLE GREEN RED GREEN RED GREEN GREEN
IN: lug OUT: RED
IN: lug kiki wif lug OUT: RED RED BLUE RED RED
IN: lug gazzer wif dax OUT: RED GREEN PURPLE GREEN GREEN
IN: dax OUT: GREEN
IN: kiki tufa gazzer fep gazzer OUT: PURPLE BLUE PURPLE
IN: dax wif gazzer OUT: PURPLE GREEN PURPLE PURPLE
IN: dax wif dax OUT: GREEN GREEN GREEN GREEN
IN: kiki OUT: BLUE
IN: dax wif lug OUT: RED GREEN RED RED
IN: kiki dax tufa lug kiki OUT: BLUE GREEN RED BLUE
IN: gazzer wif dax tufa lug wif kiki OUT: GREEN PURPLE GREEN GREEN BLUE RED BLUE BLUE
IN: dax kiki wif lug OUT: GREEN RED BLUE RED RED

*QUERY*
IN: gazzer wif dax OUT: GREEN PURPLE GREEN GREEN
IN: kiki wif lug OUT: RED BLUE RED RED
IN: gazzer OUT: PURPLE
IN: gazzer tufa kiki wif lug OUT: PURPLE RED BLUE RED RED
IN: dax gazzer wif dax OUT: GREEN GREEN PURPLE GREEN GREEN
IN: gazzer wif kiki tufa dax wif kiki OUT: BLUE PURPLE BLUE BLUE BLUE GREEN BLUE BLUE
IN: gazzer wif lug OUT: RED PURPLE RED RED
IN: gazzer wif gazzer OUT: PURPLE PURPLE PURPLE PURPLE
IN: dax wif gazzer tufa gazzer OUT: PURPLE GREEN PURPLE PURPLE PURPLE
IN: kiki wif kiki OUT: BLUE BLUE BLUE BLUE

*GRAMMAR*
gazzer -> PURPLE 
 lug -> RED 
 dax -> GREEN 
 kiki -> BLUE 
 u1 wif u2 -> [u2] [u1] [u2] [u2] 
 x1 fep x2 -> [x2] [x1] 
 x1 tufa x2 -> [x1] [x2] 
 u1 x1 -> [u1] [x1] 
 