Python从文本文件中删除单词和字符

Question

file1.txt

neighbors:
  - { neighbor: 192.168.3.1,remote-as: 200,group: Google } 
  - { neighbor: 192.168.4.1,remote-as: 300,group: FOX }
  - { neighbor: 192.168.15.1,remote-as: 400,group: TAX }
  - { neighbor: 192.168.16.1,remote-as: 500,group: TSL }
  - { neighbor: 192.168.5.1,remote-as: 400,group: TAM }

我想让它创建一个file1.txt（不带第一行en（-{}，：，）

neighbor 192.168.3.1 remote-as 200
neighbor 192.168.4.1 remote-as 300
neighbor 192.168.15.1 remote-as 400
neighbor 192.168.16.1 remote-as 500
neighbor 192.168.5.1 remote-as 400