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

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

*GRAMMAR*
fep -> RED 
 blicket -> PURPLE 
 wif -> GREEN 
 zup -> BLUE 
 u1 dax u2 -> [u1] [u1] [u2] [u2] [u1] 
 x1 tufa x2 -> [x2] [x1] 
 x1 lug -> [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 