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

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

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