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

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

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