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

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

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