5411
reporter : the ship was sinking by the second , and as the waves pounded against them , waiting for help was their only option .
 them, their, the ship
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: organization, person, geographical social political, vehicle, location, weapon, facility 
Text: {0} 
Answer:
 them, their, the ship