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

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

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