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

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

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