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

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

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