user
Instruction
Answer the question based on the provided table.


Table
Table Title: 'Filmography' regarding 'Robert Knapp (actor)'
Table Content:
| Year | Title | Role | Notes |
| --- | --- | --- | --- |
| 1951 | FBI Girl | Lockwood | Uncredited |
| 1951 | Fixed Bayonets! | Chuck | Uncredited |
| 1952 | Just This Once | Elevator Operator | Uncredited |
| 1952 | Without Warning! | Young Policeman | Uncredited |
| 1952 | Strange Fascination | Jack | - |
| 1953 | I Love Melvin | Henneman Aide | Uncredited |
| 1953 | Mesa of Lost Women | Grant Phillips | - |
| 1954 | Silent Raiders | Lt. Finch | - |
| 1955 | The Long Gray Line | Lieutenant | Uncredited |
| 1956 | Revolt at Fort Laramie | Lt. Chick Waller | - |
| 1956 | Jubal | Jake Slavin | Uncredited |
| 1956 | Screaming Eagles | Co-Pilot | Uncredited |
| 1956 | Scandal Incorporated | Jess Blanchard - Tabloid Reporter | - |
| 1957 | Tomahawk Trail | Pvt. Barrow | - |
| 1957 | Outlaw's Son | Deputy Marshal Raph Striker | - |
| 1958 | Hot Car Girl | Det. Lt. Ryan | - |
| 1959 | Gunmen from Laredo | Gil Reardon | - |
| 1970 | Airport | Jack Dunlap - Passenger | Uncredited |
| 1972 | The Stoolie | Big Daddy at Pool | - |


Question
What roles did Robert Knapp appear as in Scandal Incorporated and Mesa of Lost Women and in what years?


Answer Format
The final answer should be a sentence and use the following format:
```json
{
    "answer": "your_generated_sentence_here"
}
```
rule
["Robert Knapp appeared in Scandal Incorporated as the tabloid reporter Jess Blanchard in 1956 and as Grant Phillips in Mesa of Lost Women in 1953."]