user
Instruction
Answer the question based on the provided table.


Table
Table Title: 'Films' regarding 'John Karlen'
Table Content:
| Year | Title | Role | Notes |
| --- | --- | --- | --- |
| 1970 | House of Dark Shadows | Willie Loomis | - |
| 1971 | Daughters of Darkness | Stefan | - |
| 1971 | Night of Dark Shadows | Alex Jenkins | - |
| 1976 | A Small Town in Texas | Deputy Lenny Lutz | - |
| 1978 | Killer's Delight | Danny | - |
| 1981 | Pennies from Heaven | The Detective | - |
| 1984 | Racing with the Moon | Mr. Nash | - |
| 1984 | Impulse | Bob Russell | - |
| 1984 | Gimme an 'F' | Bucky Berkshire | - |
| 1986 | Native Son | Max | - |
| 1991 | The Dark Wind | Jake West | - |
| 1993 | Surf Ninjas | Mac | - |
| 2016 | The Job Interview | The Applicant | Short film |


Question
What were John Karlen's roles in 1970 and 1978?


Answer Format
The final answer should be a sentence and use the following format:
```json
{
    "answer": "your_generated_sentence_here"
}
```
rule
["John Karlen acted in 1970 House of Dark Shadows as Willie Loomis, and in 1978 Killer's Delight as Danny. "]