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

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

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