Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Variant id | 5’UTR splice | Coding | 3’UTR sequence | GenBank id |
| --- | --- | --- | --- | --- |
| AD'6A | AD’ | 6A | 6A | HQ021433 |
| AD'6A 2 | AD’ | 6A 2 | 6A 2 | HQ021434 |
| AD'6A 3 | AD’ | 6A 3 | 6A 3 | HQ021435 |
| AD'6A 4 | AD’ | 6A 4 | 6A 4 | HQ021436 |
| AB'D'6A | AB'D’ | 6A | 6A | JX502764 |
| AB'D'6A 2 | AB'D’ | 6A 2 | 6A 2 | HQ021437 |
| AB'D'6A 3 | AB'D’ | 6A 3 | 6A 3 | HQ021438 |
| AB'D'6A 4 | AB'D’ | 6A 4 | 6A 4 | HQ021439 |
| ACD'6A | ACD’ | 6A | 6A | JX502765 |
| ACD'6A 2 | ACD’ | 6A 2 | 6A 2 | HQ021440 |
| ACD'6A 3 | ACD’ | 6A 3 | 6A 3 | HQ021441 |
| ACD'6A 4 | ACD’ | 6A 4 | 6A 4 | HQ021442 |
| SFTPA1 variant 1 | AB'D’ | 6A 3 | 6A 3 | NM_005411.4 |
| SFTPA1 variant 2 | ACD’ | 6A 3 | 6A 3 | NM_001093770.2 |
| SFTPA1 variant 3 | ABD’ | 6A 3 | 6A 3 | NM_001164644.1 |
| SFTPA1 variant 4 | AD’ | 6A 3 | 6A 3 | NM_001164647.1 |
| SFTPA1 variant 5 | ACD’ | 6A 3 (truncated) | 6A 3 | NM_001164645.1 |
Question:
What is the 3'utr sequence with a variant id of ad'6a 4?
Answer:
6A 4