Given the statements:
- $\text{P}$ is the sister of $\text{Q}$.
- $\text{Q}$ is the husband of $\text{R}$.
- $\text{R}$ is the mother of $\text{S}$.
- $\text{T}$ is the husband of $\text{P}$.
Based on the above information, $\text{T}$ is ____________ of $\text{S}$.
- the grandfather
- an uncle
- the father
- a brother