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

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

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