 
<translate> Zaa ajụjụ ndị na-esonụ site n'iji ụbụrụ gị zaa ha. Passage: Boba tii (makwaara dị ka pearl mmiri ara ehi tii, afụ mmiri ara ehi tii, boba ihe ọṅụṅụ, boba tii, ma ọ bụ nanị afụ tii) (Chinese: 波<unk> 奶茶; pinyin: bōbà nǎichá, na tapioca bọọlụ ọ bụ 珍珠 奶茶; zhēnzhū nǎichá) bụ a Taiwanese tii dabeere ọṅụṅụ mepụtara na Tainan na Taichung na 1980s. Ihe ka ọtụtụ n'ihe ndị e ji eme tii a na-eji mkpụrụ osisi ma ọ bụ mmiri ara ehi agwakọta bụ tii, bụ́ nke a na-ejikarị bọọlụ tapioca na-ata ata (nke a maara dị ka bọmbụ, pearl, ma ọ bụ boba) na jelii mkpụrụ osisi (karịsịa mkpụrụ osisi okpomọkụ dị ka lychee) agwakọta. A na-ejikarị mkpụrụ osisi ma ọ bụ sirop agwakọta ụdị ndị a na-agwakọta ice, na-eme ka ọ dị ka mmiri mmiri. Enwere ọtụtụ ụdị mmanya nwere ọtụtụ ihe eji eme ya na ụfọdụ ihe eji eme ya bụ mango, taro, aki oyibo, na piich. Ụdị tii abụọ a kacha mara bụ tii mmiri ara ehi na tapioca na tii akwụkwọ ndụ akwụkwọ ndụ na tapioca.  Ajụjụ: N'ihi ihe e kwuru n'amaokwu a, gịnị ka obere bọl ndị dị n'ebe a na-aṅụ tii bụ́ boba pụtara? <eng> Answer the following Q with stream of consciousness. Passage: Boba tea (also known as pearl milk tea, bubble milk tea, boba juice, boba tea, or simply bubble tea) (Chinese: 波霸 奶茶; pinyin: bōbà nǎichá, with tapioca balls it is 珍珠 奶茶; zhēnzhū nǎichá) is a Taiwanese tea-based drink invented in Tainan and Taichung in the 1980s. Most bubble tea recipes contain a tea base mixed with fruit or milk, to which chewy tapioca balls (known as bubbles, pearls, or boba) and fruit jelly (especially tropical fruits like lychee) are often added. Ice-blended versions are usually mixed with fruit or syrup, resulting in a slushy consistency. There are many varieties of the drink with a wide range of ingredients with some ingredients being mango, taro, coconut, and peach. The two most popular varieties are bubble milk tea with tapioca and bubble milk green tea with tapioca.

Question: Based on this passage, what are the little balls in boba tea? 