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

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

*GRAMMAR*
gazzer -> YELLOW 
 blicket -> GREEN 
 dax -> PURPLE 
 zup -> RED 
 x1 tufa -> [x1] [x1] 
 u1 wif u2 -> [u2] [u1] 
 u1 fep u2 -> [u2] [u1] 
 u1 x1 -> [u1] [x1] 
 