Final answer:
A vessel approaching from 235° relative is in a crossing situation, and action should be taken according to maritime navigation rules to determine which vessel is the stand-on vessel or the give-way vessel.
Step-by-step explanation:
A vessel approaching your vessel from 235° relative is in a crossing situation. In the context of maritime navigation, a relative bearing of 235° means the approaching vessel is coming from your port (left) side and is moving across your course. According to the navigation rules, this requires you to determine whether you are the stand-on vessel, which has the right of way and should maintain its course and speed, or the give-way vessel, which must take action to avoid a collision. The determination depends on various factors, including the type of vessels involved and their respective courses and speeds.