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

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

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