Given that \(r\) \(h\), \(h\) \(m\), \(u\) \(h\). First build a straight line \(h\), second — \(r\), third — \(m\) and fourth — \(u\).
1. How many parallel lines are formed by these lines:
(Note: Enter the number)
2. Name the given parallel lines: .
(Note: Enter letters without commas and spaces between them)