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

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

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