anchor.diff:  "It is probable that Mr. W. will lecture the following evening, at West Auckland.",,It Is Probable That Mr,,,Northern Star,07/08/1841
   "HUDDERSFIELD. - Important Lectures.  Two lectures will be given on Sunday next, August 8, at two o clock in the afternoon, and six in the evening, in the Association Room, Upperhead-row, for the benefit of Benjamin Rushton, of Halifax, who has lost his employment, along with the whole family, solely from having advocated the principles of the Charter.
   ",,Huddersfield,53.6467031,-1.7832077,Northern Star,07/08/1841
  -"COVENTRY.   A public meeting will be held at the Chartist meeting room, Park-street, on Friday evening, the 20th instant. All lovers of freedom are invited.",,Coventry,52.4145039,-1.51876332259483,Northern Star,14/08/1841
  +"COVENTRY.   A public meeting will be held at the Chartist meeting room, Park-street, on Friday evening, the 20th instant. All lovers of freedom are invited.",,Coventry,52.4145039,-1.518763323,Northern Star,14/08/1841
   "EDINBURGH.   The delegate meeting about to bo held in Edinburgh, is fixed for the 23rd of August. The subjects to be brought before the meeting are  the better organization of the county ; to issue an address to the county, in order to remove the prejudice that at present exists; to bring out a monthly tract; and to appoint a lecturer for the county.",,Edinburgh,55.9483544,-3.1931187,Northern Star,14/08/1841
   "LAMBERHEAD GREEN, NEAR WIGAN.   Mr. William Dixon will lecture here on Sunday, August 15th, at two o clock, and in the Chartist Association Room, Mill-gate, Wigan, at eight o'clock in the evening.",,"Lamberhead Green, Near Wigan",53.5396103,-2.6863322,Northern Star,14/08/1841
   "TYLDESLEY BANK.   Mr. Dixon will deliver a teetotal lecture at half-past two o clock, and a political lecture at half past six, on Sunday, August 22nd.",,Tyldesley Bank,53.5166,-2.4667,Northern Star,14/08/1841
  
positive.code: "A special Conference of Chartists will be held at the Black Horse Inn, Prospect Row, on Tuesday evening next, at eight o'clock, to. which all the members are particularly invited, as business of first importance will be brought forward.
  ",,"A Special Conference Of Chartists Will Be Held At The Black Horse Inn, Prospect Row, On Tuesday Evening Next, At Eight O'clock, To",,,Northern Star,04/06/1842
  "LONDON.   Mr. Farrer will lecture on the Corn Laws, on Sunday, in the Archery Rooms, Bath-place, New-road.",,London,51.5073219,-0.1276474,Northern Star,11/06/1842
  "MR. ROUSE will lecture on Sunday, at the Goldbeaters  Arms, Old St. Pancras-road.",,Mr,,,Northern Star,11/06/1842
  "MR. FERGUSON will lecture on Sunday evening, at the Carpenters  Arms, Brick-lane.",,Mr,,,Northern Star,11/06/1842
  "MR. DOWLING will lecture at the Hit or Miss, Globe Fields, on Sunday evening.",,Mr,,,Northern Star,11/06/1842
  "MR. WHEELER will lecture on Sunday evening, at the Cannon Coffee House, Old-street,",,Mr,,,Northern Star,11/06/1842
  
negative.code: "HOLBECK. - Mr. Hill will E-reach two sermons or Sunday to-morrow; in the afternoon, at half past two, and six.",,Holbeck,,,Northern Star,28/01/1843
  "LONDON.   Mr. Wheeler will lecture on Sunday evening, at the Chartist Hall, Star-street, Bethnal Green.",,London,51.5073219,-0.1276474,Northern Star,28/01/1843
  "Mr. Wheeler will lecture on Monday evening, at tho Britannia, Waterloo Road.",,Mr,,,Northern Star,28/01/1843
  "Mr. Sewell will lecture on Sunday evening, at the Goldbeater s Arms, Old St. Pancras Road.",,St. Pancras,51.5318585,-0.126603919,Northern Star,28/01/1843
  "Mr. Bairstow will lecture at the Star Coffee House, Golden-square, next Sunday evening, at seven o clock. A collection will be made.",,Mr,,,Northern Star,28/01/1843
  "Mr. Skelton, of tho Clock House locality will lecture on Sunday evening, at 55. Old Bailey. Subject  Union, and the best, means to be adopted to obtain the same. To commence at seven o clock precisely.",,Mr,,,Northern Star,28/01/1843
  CAMBERWELL.   Mr. Sewell will lecture here on the 6th of February.,,Camberwell,,,Northern Star,28/01/1843
  