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:
| Frequency | Call sign | Branding | Format | Owner | Language/Rebroadcast |
| --- | --- | --- | --- | --- | --- |
| FM 93.7 | CJLT-FM | 93.7 Praise FM | Contemporary Christian music | Vista Radio | English |
| FM 94.5 | CHAT-FM | CHAT 94.5 | country music | Jim Pattison Group | English |
| FM 96.1 | CFMY-FM | My 96 | hot adult contemporary | Jim Pattison Group | English |
| FM 97.3 | CKUA-FM-3 | CKUA Radio Network | public broadcasting | CKUA Radio Foundation | English, rebroadcasts CKUA-FM Edmonton |
| FM 98.3 | CBRM-FM | CBC Radio One | news / talk | Canadian Broadcasting Corporation | English, rebroadcasts CBR Calgary |
| FM 100.5 | CHFA-FM-8 | Première Chaîne | news / talk | Canadian Broadcasting Corporation | French ; rebroadcasts CHFA Edmonton |
| FM 102.1 | CJCY-FM | Classic Hits 102.1 CJCY | classic hits | Clear Sky Radio | English |
Question:
When vista radio is the owner how many call signs are there?
Answer:
1.0