*SUPPORT*
IN: blicket kiki fep gazzer OUT: GREEN RED RED GREEN RED RED
IN: dax wif fep OUT: YELLOW RED YELLOW RED YELLOW RED
IN: fep gazzer OUT: RED RED
IN: fep wif fep OUT: RED RED RED RED RED RED
IN: tufa gazzer OUT: PURPLE PURPLE
IN: dax wif blicket OUT: YELLOW GREEN YELLOW GREEN YELLOW GREEN
IN: dax dax wif dax OUT: YELLOW YELLOW YELLOW YELLOW YELLOW YELLOW YELLOW
IN: dax kiki dax OUT: YELLOW YELLOW YELLOW YELLOW
IN: dax wif dax OUT: YELLOW YELLOW YELLOW YELLOW YELLOW YELLOW
IN: fep OUT: RED
IN: dax tufa fep wif tufa OUT: YELLOW PURPLE RED PURPLE RED PURPLE RED PURPLE
IN: dax gazzer OUT: YELLOW YELLOW
IN: fep kiki fep dax OUT: RED RED YELLOW RED RED YELLOW
IN: blicket wif dax OUT: GREEN YELLOW GREEN YELLOW GREEN YELLOW

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

*GRAMMAR*
tufa -> PURPLE 
 blicket -> GREEN 
 dax -> YELLOW 
 fep -> RED 
 u1 wif u2 -> [u1] [u2] [u1] [u2] [u1] [u2] 
 u1 gazzer -> [u1] [u1] 
 u1 kiki x1 -> [u1] [x1] [u1] [x1] 
 u1 x1 -> [u1] [x1] 
 