*SUPPORT*
IN: dax wif dax fep fep OUT: RED RED RED RED RED RED RED RED
IN: dax lug fep wif gazzer OUT: RED PURPLE RED PURPLE YELLOW
IN: gazzer fep OUT: YELLOW YELLOW
IN: gazzer wif dax fep OUT: YELLOW RED YELLOW RED
IN: lug OUT: PURPLE
IN: dax wif lug OUT: RED PURPLE
IN: gazzer dax fep OUT: YELLOW RED YELLOW RED
IN: lug fep OUT: PURPLE PURPLE
IN: lug blicket OUT: PURPLE GREEN
IN: gazzer wif lug OUT: YELLOW PURPLE
IN: lug dax wif gazzer wif lug fep OUT: PURPLE RED YELLOW PURPLE PURPLE RED YELLOW PURPLE
IN: lug gazzer wif lug fep OUT: PURPLE YELLOW PURPLE PURPLE YELLOW PURPLE
IN: gazzer OUT: YELLOW
IN: blicket gazzer gazzer fep OUT: GREEN YELLOW YELLOW GREEN YELLOW YELLOW

*QUERY*
IN: gazzer wif dax OUT: YELLOW RED
IN: lug wif dax wif gazzer OUT: PURPLE RED YELLOW
IN: lug dax OUT: PURPLE RED
IN: gazzer dax OUT: YELLOW RED
IN: lug gazzer fep wif gazzer OUT: PURPLE YELLOW PURPLE YELLOW YELLOW
IN: lug fep wif dax OUT: PURPLE PURPLE RED
IN: blicket OUT: GREEN
IN: dax dax fep wif blicket OUT: RED RED RED RED GREEN
IN: lug lug OUT: PURPLE PURPLE
IN: dax OUT: RED

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