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

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

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