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:
| Model | Class | Length | Fuel | Starting Price |
| --- | --- | --- | --- | --- |
| Tour | Class A | 42' | Diesel | $362,285 |
| Journey | Class A | 35'-43' | Diesel | $246,736 |
| Adventurer | Class A | 32'-37' | Gas | $150,711 |
| Via | Class A | 25' | Diesel | $126,476 |
| Sightseer | Class A | 31'-37' | Gas | $126,162 |
| Vista | Class A | 26'-35' | Gas | $107,717 |
| View | Class C | 24'-25' | Diesel | $100,955 |
| Aspect | Class C | 29'-31' | Gas | $95,948 |
| Access | Class C | 25'-31' | Gas | $74,704 |
Question:
how many models are available in lengths longer than 30 feet?
Answer:
7