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:
| Riding | Candidate's Name | Gender | Residence | Occupation | Votes | Rank |
| --- | --- | --- | --- | --- | --- | --- |
| Calgary Southwest | Larry Heather | M | Calgary | Audio Producer | 256.0 | 6th |
| Fort McMurray—Athabasca | Jacob Strydhorst | M | Neerlandia | Farmer | 186.0 | 7th |
| Lethbridge | Geoffrey Capp | M | Lethbridge | Security Guard | 1094.0 | 5th |
| Macleod | Marc Slingerland | M | Lethbridge | Teacher | 422.0 | 5th |
| Medicine Hat | Frans VandeStroet | M | Enchant | Farm Realtor | 363.0 | 7th |
| Westlock—St. Paul | Sippe Hofstede | M | Westlock | Draftsman | 510.0 | 5th |
| Yellowhead | John Marvin Wierenga | M | Neerlandia | Welder | 606.0 | 5th |
Question:
What is John Marvin Wierenga's occupation?
Answer:
Welder