65326
The numbers on the signs are kilometres from a point on the north side of the Dartford Crossing , while the letter is " A " for the clockwise carriageway and " B " for the anticlockwise .
 Dartford Crossing
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Dartford Crossing