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

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

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