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

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

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