 
<translate> Ịrụ ọrụ n'ahụ́ ájá nke mgbidi apụtaghị ịtụnye brik ọhụrụ. O nwere ike ịpụta idozigharị ájá ahụ ma ọ bụ ime ka ájá ahụ dị larịị nke ọma ka o wee ghara inwe ihe ndị ahụ na-apụtaghị ìhè. Ọ pụrụ ịbụ ikpochapụ ebu ma ọ bụ ihe ọkụkụ ndị si n'ime mkpo ahụ banye n'ime brik ahụ. Ahụla m nke ahụ mbụ. Azịza ikpeazụ ya bụ na ọ gaghị ekwe omume ịmata. <eng> Working on the masonry of a wall does not mean laying new bricks. It could mean filling in broken mortar or smoothing the mortar now that it has set to get rid of the spikey bits sticking out. It could be getting rid of mold or plants that have dug their way through the mortar and into the brick. I have seen that before.
The final answer: it is not possible to tell. 