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

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

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