With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Leonardo DiCaprio is a climber.
text_B: Uniparental disomy -LRB- UPD -RRB- occurs when a person receives two copies of a chromosome , or of part of a chromosome , from one parent and no copy from the other parent .. chromosome. chromosome. UPD can be the result of heterodisomy , in which a pair of non-identical chromosomes are inherited from one parent -LRB- an earlier stage meiosis I error -RRB- or isodisomy , in which a single chromosome from one parent is duplicated -LRB- a later stage meiosis II error -RRB- .. chromosome. chromosome. meiosis I. meiosis I. meiosis II. meiosis II. Uniparental disomy may have clinical relevance for several reasons .. For example , either isodisomy or heterodisomy can disrupt parent-specific genomic imprinting , resulting in imprinting disorders .. genomic imprinting. genomic imprinting. Additionally , isodisomy leads to large blocks of homozygosity , which may lead to the uncovering of recessive genes , a similar phenomenon seen in children of consanguineous partners .. recessive. recessive
not_related.