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

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

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