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:
| Year | Single | Chart | Position |
| --- | --- | --- | --- |
| 1975 | "Sun Goddess" | Black Singles | 20 |
| 1975 | "Sun Goddess" | Disco Singles | 5 |
| 1975 | "Sun Goddess" | Pop Singles | 44 |
| 1976 | "Can't Hide Love" | Black Singles | 11 |
| 1976 | "Can't Hide Love" | Pop Singles | 39 |
| 1976 | "Sing a Song/Gratitude" | Club Play Singles | 1 |
| 1976 | "Sing a Song" | Black Singles | 1 |
| 1976 | "Sing a Song" | Pop Singles | 5 |
Question:
how many of the singles are under the chart of pop singles?
Answer:
3