life

1. fortune

1.1. health

1.2. happiness

1.2.1. Task 1

1.2.2. Task 2

1.3. favorite job

1.3.1. Call 1

1.3.2. Call 2

1.4. money

1.4.1. Meeting 1

1.4.2. Meeting 2

1.5. friends

2. time

2.1. busy

2.2. relaxation

2.2.1. Task 1

2.2.2. Task 2

2.3. thinking

3. family

3.1. paraents

3.2. husband

3.2.1. Task 1

3.2.2. Task 2

3.3. child

3.3.1. Call 1

3.3.2. Call 2

3.4. relatives

3.4.1. Meeting 1

3.4.2. Meeting 2

4. knowledge

4.1. learning

4.2. reading

4.3. research

4.4. observation

5. New node