Suggestion for grammatical improvement

Name: Harry Loots
Email: harry.loots@ieee.org
Affiliation: EPO
Document: TD
Item Number: G8
Part of Item: Applicability
Comment Type: editorial
Summary of Issue: Suggestion for grammatical improvement
Comment (Including rationale for any proposed change):
Sentence described in proposed change contains grammatical error. See below:

Proposed Change:
Current text:
An alternate version of an online video of a family escaping from a burning building, there is a continuous dialogue between the husband and wife about where the children are. 

Suggested change:
delete {An} 
insert {In an}
New text:
[begin add]In an[end add] [begin delete]An[end delete] alternate version of an online video of a family escaping from a burning building, there is a continuous dialogue between the husband and wife about where the children are. 

Alternative to suggested change is to substitute  [,] with [:]