A sentence is a list of words that are separated by a single space with no leading or trailing spaces. For example, `"Hello World"`, `"HELLO"`, `"hello world hello world"` are all sentences. Words consist of only uppercase and lowercase English letters.

Two sentences `sentence1` and `sentence2` are similar if it is possible to insert an arbitrary sentence (possibly empty) inside one of these sentences such that the two sentences become equal. For example, `sentence1 = "Hello my name is Jane"` and `sentence2 = "Hello Jane"` can be made equal by inserting `"my name is"` between `"Hello"` and `"Jane"` in `sentence2`.

Given two sentences `sentence1` and `sentence2`, return `true` if `sentence1` and `sentence2` are similar. Otherwise, return `false`.

Example 1:

    Input: sentence1 = "My name is Haley", sentence2 = "My Haley"
    Output: true
    Explanation: sentence2 can be turned to sentence1 by inserting "name is" between "My" and "Haley".

Example 2:

    Input: sentence1 = "of", sentence2 = "A lot of words"
    Output: false
    Explanation: No single sentence can be inserted inside one of the sentences to make it equal to the other.

Example 3:

    Input: sentence1 = "Eating right now", sentence2 = "Eating"
    Output: true
    Explanation: sentence2 can be turned to sentence1 by inserting "right now" at the end of the sentence.

Constraints:

- `1 <= sentence1.length, sentence2.length <= 100`
- `sentence1` and `sentence2` consist of lowercase and uppercase English letters and spaces.
- The words in `sentence1` and `sentence2` are separated by a single space.