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

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

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