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

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

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