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

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

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