user
Instruction
This is a table fact verification task. The goal of this task is to distinguish whether the given statement is entailed or refuted by the given table.


Table
Table Title: list of daytona 500 broadcasters
Table Content:
| year | network | lap - by - lap | pit reporters | host |
| --- | --- | --- | --- | --- |
| 1960 | cbs sports spectacular | bud palmer | bud palmer | bud palmer |
| 1962 | abc 's wwos | jim mckay | chris economaki | jim mckay |
| 1963 | abc 's wwos | bill flemming | chris economaki | bill flemming |
| 1964 | abc 's wwos | bill flemming | chris economaki stirling moss | bill flemming |
| 1965 | abc 's wwos | bill flemming | bill flemming | bill flemming |
| 1966 | abc 's wwos | curt gowdy | chris economaki | curt gowdy |
| 1967 | abc 's wwos | jim mckay | chris economaki | jim mckay |
| 1968 | abc 's wwos | bill flemming | bill flemming | bill flemming |
| 1969 | abc 's wwos | bill flemming | bill flemming | bill flemming |
| 1970 | abc 's wwos | keith jackson | chris economaki | keith jackson |
| 1971 | abc 's wwos | keith jackson | chris economaki | keith jackson |
| 1972 | abc 's wwos | keith jackson | chris economaki | keith jackson |
| 1973 | abc 's wwos | jim mckay | chris economaki | jim mckay |
| 1974 | abc 's wwos | keith jackson | chris economaki | keith jackson |
| 1975 | abc 's wwos | bill flemming | bill flemming | bill flemming |
| 1976 | abc 's wwos | bill flemming | chris economaki | bill flemming |
| 1977 | abc 's wwos | jim mckay | chris economaki | jim mckay |
| 1978 | abc 's wwos | jim mckay | chris economaki | jim mckay |


Statement
abc 's wwos have the announce duo of bill flemming and chris economaki for 3 straight year


Answer Format
The final answer should be either "entailed" or "refuted" and use the following format:
```json
{
    "answer": "entailed" or "refuted"
}
```
rule
["refuted"]