 The teacher, Mr. Alexander Ponosov, pleaded not guilty and claimed that he purchased the computer along with the software it came with legally, without knowing that the computer was loaded with pirated software.
<clarity>  The teacher, Mr. Alexander Ponosov, pleaded not guilty and claimed that he purchased the computer along with the software it came with legally, without knowing that the computer was loaded with pirated software.
 The teacher, Mr. Alexander Ponosov, pleaded not guilty and claimed that he did not know that the purchased computers were loaded with pirated software.