In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.

[EX Q]: Friendship means to trust _ or more people.
[EX A]: two

[EX Q]: Cleavage is imperfect in _ directions, prismatically.
[EX A]: two

[EX Q]: Dairy cows live for _ generations, calve and produce normal milk on a protein-free diet.
[EX A]:
six