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

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

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