2.2.5 - "The formula shown in BCR-v0.1" - what is BCR-v0.1?? 
2.2.5 - 3rd paragraph 2nd sentence:  taht
2.2.5 - "Note that our examples v0.2 and v0.2.1 are now valid RIF syntax." - what are v0.2 and v0.2.1??
2.3 - Why is the prefix rdfs shown?
2.3 - "In this document, text boxes with a gray background" - none has such a grey background
3.2 - F missing in first occurence of "imdbrel:roleInilm(?Role ?Film))"
4.1 - second sentence:  reeasoning