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

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

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