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

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

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