"Two emitted positions" was followed by an enumeration counting occurrences — the field twice, the class statement once — so the two halves of the sentence disagreed. The sentence now states what needs the tables without a count.
"Two emitted positions" was followed by an enumeration counting occurrences — the field twice, the class statement once — so the two halves of the sentence disagreed. The sentence now states what needs the tables without a count.