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

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

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