 <translate> Vehicle can mean many different things from cars to truck to trains. There is no way to infer that the use of the word vehicle here means that they are sitting on a boat.
Therefore, the answer is it is not possible to tell. <yor> Ọkọ̀ lè túmọ̀ sí oríṣiríṣi nǹkan láti orí ọkọ̀ ayọ́kẹ́lẹ́ sí ọkọ̀ akẹ́rù sí ọkọ̀ ojú irin. Kò sí bá a ṣe lè sọ pé ohun tí ọ̀rọ̀ náà ọkọ̀ òfuurufú túmọ̀ sí ni pé wọ́n jókòó sórí ọkọ̀ ojú omi. Nítorí náà, ìdáhùn náà ni pé kò ṣeé ṣe láti sọ. 