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:
| Name | Country | Loan Club | Started | Ended | Start Source | End Source |
| --- | --- | --- | --- | --- | --- | --- |
| Clapham | ENG | Wolverhampton Wanderers | 20 August | 20 November | BBC Sport | Leeds United |
| Andrews | ENG | Coventry City | 1 October | 27 October | BBC Sport | Leeds United |
| de Vries | NED SUR | Leicester City | 1 October | 15 January | Leicester City | Leeds United |
| Kishishev | BUL | Leicester City | 23 October | 23 January | BBC Sport | BBC Sport |
| Ameobi | ENG | Scunthorpe United | 15 November | 4 May | Sky Sports | Sky Sports |
| Derry | ENG | Crystal Palace | 19 November | 19 January | Sky Sports | Sky Sports |
| Kilkenny | AUS ENG | Birmingham City | 4 January | 7 January | BBC Sport | Leeds United |
| Kenton | ENG | Leicester City | 10 January | 31 January | Leicester City | Leeds United |
| Thompson | ENG | Hartlepool United | 22 January | 22 February | Leeds United | Leeds United |
| Gardner | ENG LUX | Farsley Celtic | 22 January | 24 February | Leeds United | Leeds United |
| Sheehan | IRE | Leicester City | 31 January | 25 May | Yahoo Sport | TEAMtalk |
| O'Halloran | IRE | Aston Villa | 28 February | 4 March | BBC Sport | Leeds United |
| Parker | ENG | Darlington | 26 February | 17 May | Sky Sports | BBC Sport |
| Westlake | ENG | Brighton & Hove Albion | 4 March | 4 May | Sky Sports | Sky Sports |
| Weston | ENG | Scunthorpe United | 4 March | 4 May | Sky Sports | Sky Sports |
| Constantine | ENG | Oldham Athletic | 5 March | 7 April | Leeds United | Leeds United |
| Freedman | SCO | Crystal Palace | 7 March | 25 May | TEAMtalk | Yorkshire Evening Post |
| Heath | ENG | Colchester United | 14 March | 4 May | Sky Sports | Sky Sports |
Question:
What was the start source that ended on 4 May?
Answer:
Sky Sports, Sky Sports, Sky Sports, Sky Sports